diff --git a/examples/v3.0/api-with-examples.yaml b/examples/v3.0/api-with-examples.yaml
index 62733df..d541060 100644
--- a/examples/v3.0/api-with-examples.yaml
+++ b/examples/v3.0/api-with-examples.yaml
@@ -1,4 +1,4 @@
-openapi: "3.0.0"
+openapi: '3.0.0'
 info:
   title: Simple API overview
   version: 2.0.0
@@ -8,7 +8,7 @@ paths:
       operationId: listVersionsv2
       summary: List API versions
       responses:
-        "200":
+        '200':
           description: |-
             200 response
           content:
@@ -17,35 +17,35 @@ paths:
                 foo:
                   value:
                     {
-                      "versions":
+                      'versions':
                         [
                           {
-                            "status": "CURRENT",
-                            "updated": "2011-01-21T11:33:21Z",
-                            "id": "v2.0",
-                            "links":
+                            'status': 'CURRENT',
+                            'updated': '2011-01-21T11:33:21Z',
+                            'id': 'v2.0',
+                            'links':
                               [
                                 {
-                                  "href": "http://127.0.0.1:8774/v2/",
-                                  "rel": "self",
+                                  'href': 'http://127.0.0.1:8774/v2/',
+                                  'rel': 'self',
                                 },
                               ],
                           },
                           {
-                            "status": "EXPERIMENTAL",
-                            "updated": "2013-07-23T11:33:21Z",
-                            "id": "v3.0",
-                            "links":
+                            'status': 'EXPERIMENTAL',
+                            'updated': '2013-07-23T11:33:21Z',
+                            'id': 'v3.0',
+                            'links':
                               [
                                 {
-                                  "href": "http://127.0.0.1:8774/v3/",
-                                  "rel": "self",
+                                  'href': 'http://127.0.0.1:8774/v3/',
+                                  'rel': 'self',
                                 },
                               ],
                           },
                         ],
                     }
-        "300":
+        '300':
           description: |-
             300 response
           content:
@@ -84,7 +84,7 @@ paths:
       operationId: getVersionDetailsv2
       summary: Show API version details
       responses:
-        "200":
+        '200':
           description: |-
             200 response
           content:
@@ -93,47 +93,47 @@ paths:
                 foo:
                   value:
                     {
-                      "version":
+                      'version':
                         {
-                          "status": "CURRENT",
-                          "updated": "2011-01-21T11:33:21Z",
-                          "media-types":
+                          'status': 'CURRENT',
+                          'updated': '2011-01-21T11:33:21Z',
+                          'media-types':
                             [
                               {
-                                "base": "application/xml",
-                                "type": "application/vnd.openstack.compute+xml;version=2",
+                                'base': 'application/xml',
+                                'type': 'application/vnd.openstack.compute+xml;version=2',
                               },
                               {
-                                "base": "application/json",
-                                "type": "application/vnd.openstack.compute+json;version=2",
+                                'base': 'application/json',
+                                'type': 'application/vnd.openstack.compute+json;version=2',
                               },
                             ],
-                          "id": "v2.0",
-                          "links":
+                          'id': 'v2.0',
+                          'links':
                             [
                               {
-                                "href": "http://127.0.0.1:8774/v2/",
-                                "rel": "self",
+                                'href': 'http://127.0.0.1:8774/v2/',
+                                'rel': 'self',
                               },
                               {
-                                "href": "http://docs.openstack.org/api/openstack-compute/2/os-compute-devguide-2.pdf",
-                                "type": "application/pdf",
-                                "rel": "describedby",
+                                'href': 'http://docs.openstack.org/api/openstack-compute/2/os-compute-devguide-2.pdf',
+                                'type': 'application/pdf',
+                                'rel': 'describedby',
                               },
                               {
-                                "href": "http://docs.openstack.org/api/openstack-compute/2/wadl/os-compute-2.wadl",
-                                "type": "application/vnd.sun.wadl+xml",
-                                "rel": "describedby",
+                                'href': 'http://docs.openstack.org/api/openstack-compute/2/wadl/os-compute-2.wadl',
+                                'type': 'application/vnd.sun.wadl+xml',
+                                'rel': 'describedby',
                               },
                               {
-                                "href": "http://docs.openstack.org/api/openstack-compute/2/wadl/os-compute-2.wadl",
-                                "type": "application/vnd.sun.wadl+xml",
-                                "rel": "describedby",
+                                'href': 'http://docs.openstack.org/api/openstack-compute/2/wadl/os-compute-2.wadl',
+                                'type': 'application/vnd.sun.wadl+xml',
+                                'rel': 'describedby',
                               },
                             ],
                         },
                     }
-        "203":
+        '203':
           description: |-
             203 response
           content:
@@ -142,37 +142,37 @@ paths:
                 foo:
                   value:
                     {
-                      "version":
+                      'version':
                         {
-                          "status": "CURRENT",
-                          "updated": "2011-01-21T11:33:21Z",
-                          "media-types":
+                          'status': 'CURRENT',
+                          'updated': '2011-01-21T11:33:21Z',
+                          'media-types':
                             [
                               {
-                                "base": "application/xml",
-                                "type": "application/vnd.openstack.compute+xml;version=2",
+                                'base': 'application/xml',
+                                'type': 'application/vnd.openstack.compute+xml;version=2',
                               },
                               {
-                                "base": "application/json",
-                                "type": "application/vnd.openstack.compute+json;version=2",
+                                'base': 'application/json',
+                                'type': 'application/vnd.openstack.compute+json;version=2',
                               },
                             ],
-                          "id": "v2.0",
-                          "links":
+                          'id': 'v2.0',
+                          'links':
                             [
                               {
-                                "href": "http://23.253.228.211:8774/v2/",
-                                "rel": "self",
+                                'href': 'http://23.253.228.211:8774/v2/',
+                                'rel': 'self',
                               },
                               {
-                                "href": "http://docs.openstack.org/api/openstack-compute/2/os-compute-devguide-2.pdf",
-                                "type": "application/pdf",
-                                "rel": "describedby",
+                                'href': 'http://docs.openstack.org/api/openstack-compute/2/os-compute-devguide-2.pdf',
+                                'type': 'application/pdf',
+                                'rel': 'describedby',
                               },
                               {
-                                "href": "http://docs.openstack.org/api/openstack-compute/2/wadl/os-compute-2.wadl",
-                                "type": "application/vnd.sun.wadl+xml",
-                                "rel": "describedby",
+                                'href': 'http://docs.openstack.org/api/openstack-compute/2/wadl/os-compute-2.wadl',
+                                'type': 'application/vnd.sun.wadl+xml',
+                                'rel': 'describedby',
                               },
                             ],
                         },
diff --git a/examples/v3.0/callback-example.yaml b/examples/v3.0/callback-example.yaml
index 0bd0f93..262b8df 100644
--- a/examples/v3.0/callback-example.yaml
+++ b/examples/v3.0/callback-example.yaml
@@ -18,7 +18,7 @@ paths:
             format: uri
             example: https://tonys-server.com
       responses:
-        "201":
+        '201':
           description: subscription successfully created
           content:
             application/json:
@@ -36,7 +36,7 @@ paths:
         onData:
           # when data is sent, it will be sent to the `callbackUrl` provided
           # when making the subscription PLUS the suffix `/data`
-          "{$request.query.callbackUrl}/data":
+          '{$request.query.callbackUrl}/data':
             post:
               requestBody:
                 description: subscription payload
@@ -51,11 +51,11 @@ paths:
                         userData:
                           type: string
               responses:
-                "202":
+                '202':
                   description: |
                     Your server implementation should return this HTTP status code
                     if the data was received successfully
-                "204":
+                '204':
                   description: |
                     Your server should return this HTTP status code if no longer interested
                     in further updates
diff --git a/examples/v3.0/link-example.yaml b/examples/v3.0/link-example.yaml
index 8616f32..ea90bdc 100644
--- a/examples/v3.0/link-example.yaml
+++ b/examples/v3.0/link-example.yaml
@@ -13,15 +13,15 @@ paths:
           schema:
             type: string
       responses:
-        "200":
+        '200':
           description: The User
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/user"
+                $ref: '#/components/schemas/user'
           links:
             userRepositories:
-              $ref: "#/components/links/UserRepositories"
+              $ref: '#/components/links/UserRepositories'
   /2.0/repositories/{username}:
     get:
       operationId: getRepositoriesByOwner
@@ -32,17 +32,17 @@ paths:
           schema:
             type: string
       responses:
-        "200":
+        '200':
           description: repositories owned by the supplied user
           content:
             application/json:
               schema:
                 type: array
                 items:
-                  $ref: "#/components/schemas/repository"
+                  $ref: '#/components/schemas/repository'
           links:
             userRepository:
-              $ref: "#/components/links/UserRepository"
+              $ref: '#/components/links/UserRepository'
   /2.0/repositories/{username}/{slug}:
     get:
       operationId: getRepository
@@ -58,15 +58,15 @@ paths:
           schema:
             type: string
       responses:
-        "200":
+        '200':
           description: The repository
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/repository"
+                $ref: '#/components/schemas/repository'
           links:
             repositoryPullRequests:
-              $ref: "#/components/links/RepositoryPullRequests"
+              $ref: '#/components/links/RepositoryPullRequests'
   /2.0/repositories/{username}/{slug}/pullrequests:
     get:
       operationId: getPullRequestsByRepository
@@ -90,14 +90,14 @@ paths:
               - merged
               - declined
       responses:
-        "200":
+        '200':
           description: an array of pull request objects
           content:
             application/json:
               schema:
                 type: array
                 items:
-                  $ref: "#/components/schemas/pullrequest"
+                  $ref: '#/components/schemas/pullrequest'
   /2.0/repositories/{username}/{slug}/pullrequests/{pid}:
     get:
       operationId: getPullRequestsById
@@ -118,15 +118,15 @@ paths:
           schema:
             type: string
       responses:
-        "200":
+        '200':
           description: a pull request object
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/pullrequest"
+                $ref: '#/components/schemas/pullrequest'
           links:
             pullRequestMerge:
-              $ref: "#/components/links/PullRequestMerge"
+              $ref: '#/components/links/PullRequestMerge'
   /2.0/repositories/{username}/{slug}/pullrequests/{pid}/merge:
     post:
       operationId: mergePullRequest
@@ -147,7 +147,7 @@ paths:
           schema:
             type: string
       responses:
-        "204":
+        '204':
           description: the PR was successfully merged
 components:
   links:
@@ -189,7 +189,7 @@ components:
         slug:
           type: string
         owner:
-          $ref: "#/components/schemas/user"
+          $ref: '#/components/schemas/user'
     pullrequest:
       type: object
       properties:
@@ -198,6 +198,6 @@ components:
         title:
           type: string
         repository:
-          $ref: "#/components/schemas/repository"
+          $ref: '#/components/schemas/repository'
         author:
-          $ref: "#/components/schemas/user"
+          $ref: '#/components/schemas/user'
diff --git a/examples/v3.0/petstore-expanded.yaml b/examples/v3.0/petstore-expanded.yaml
index fdeee95..c4d59a6 100644
--- a/examples/v3.0/petstore-expanded.yaml
+++ b/examples/v3.0/petstore-expanded.yaml
@@ -1,4 +1,4 @@
-openapi: "3.0.0"
+openapi: '3.0.0'
 info:
   version: 1.0.0
   title: Swagger Petstore
@@ -40,20 +40,20 @@ paths:
             type: integer
             format: int32
       responses:
-        "200":
+        '200':
           description: pet response
           content:
             application/json:
               schema:
                 type: array
                 items:
-                  $ref: "#/components/schemas/Pet"
+                  $ref: '#/components/schemas/Pet'
         default:
           description: unexpected error
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/Error"
+                $ref: '#/components/schemas/Error'
     post:
       description: Creates a new pet in the store. Duplicates are allowed
       operationId: addPet
@@ -63,20 +63,20 @@ paths:
         content:
           application/json:
             schema:
-              $ref: "#/components/schemas/NewPet"
+              $ref: '#/components/schemas/NewPet'
       responses:
-        "200":
+        '200':
           description: pet response
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/Pet"
+                $ref: '#/components/schemas/Pet'
         default:
           description: unexpected error
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/Error"
+                $ref: '#/components/schemas/Error'
   /pets/{id}:
     get:
       description: Returns a user based on a single ID, if the user does not have access to the pet
@@ -90,18 +90,18 @@ paths:
             type: integer
             format: int64
       responses:
-        "200":
+        '200':
           description: pet response
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/Pet"
+                $ref: '#/components/schemas/Pet'
         default:
           description: unexpected error
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/Error"
+                $ref: '#/components/schemas/Error'
     delete:
       description: deletes a single pet based on the ID supplied
       operationId: deletePet
@@ -114,19 +114,19 @@ paths:
             type: integer
             format: int64
       responses:
-        "204":
+        '204':
           description: pet deleted
         default:
           description: unexpected error
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/Error"
+                $ref: '#/components/schemas/Error'
 components:
   schemas:
     Pet:
       allOf:
-        - $ref: "#/components/schemas/NewPet"
+        - $ref: '#/components/schemas/NewPet'
         - type: object
           required:
             - id
diff --git a/examples/v3.0/petstore.yaml b/examples/v3.0/petstore.yaml
index a956f24..b01683d 100644
--- a/examples/v3.0/petstore.yaml
+++ b/examples/v3.0/petstore.yaml
@@ -1,4 +1,4 @@
-openapi: "3.0.0"
+openapi: '3.0.0'
 info:
   version: 1.0.0
   title: Swagger Petstore
@@ -23,7 +23,7 @@ paths:
             maximum: 100
             format: int32
       responses:
-        "200":
+        '200':
           description: A paged array of pets
           headers:
             x-next:
@@ -33,13 +33,13 @@ paths:
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/Pets"
+                $ref: '#/components/schemas/Pets'
         default:
           description: unexpected error
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/Error"
+                $ref: '#/components/schemas/Error'
     post:
       summary: Create a pet
       operationId: createPets
@@ -49,17 +49,17 @@ paths:
         content:
           application/json:
             schema:
-              $ref: "#/components/schemas/Pet"
+              $ref: '#/components/schemas/Pet'
         required: true
       responses:
-        "201":
+        '201':
           description: Null response
         default:
           description: unexpected error
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/Error"
+                $ref: '#/components/schemas/Error'
   /pets/{petId}:
     get:
       summary: Info for a specific pet
@@ -74,18 +74,18 @@ paths:
           schema:
             type: string
       responses:
-        "200":
+        '200':
           description: Expected response to a valid request
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/Pet"
+                $ref: '#/components/schemas/Pet'
         default:
           description: unexpected error
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/Error"
+                $ref: '#/components/schemas/Error'
 components:
   schemas:
     Pet:
@@ -105,7 +105,7 @@ components:
       type: array
       maxItems: 100
       items:
-        $ref: "#/components/schemas/Pet"
+        $ref: '#/components/schemas/Pet'
     Error:
       type: object
       required:
diff --git a/examples/v3.0/uspto.yaml b/examples/v3.0/uspto.yaml
index fb9d7e7..2186e50 100644
--- a/examples/v3.0/uspto.yaml
+++ b/examples/v3.0/uspto.yaml
@@ -1,13 +1,13 @@
 openapi: 3.0.1
 servers:
-  - url: "{scheme}://developer.uspto.gov/ds-api"
+  - url: '{scheme}://developer.uspto.gov/ds-api'
     variables:
       scheme:
-        description: "The Data Set API is accessible via https and http"
+        description: 'The Data Set API is accessible via https and http'
         enum:
-          - "https"
-          - "http"
-        default: "https"
+          - 'https'
+          - 'http'
+        default: 'https'
 info:
   description: >-
     The Data Set API (DSAPI) allows the public users to discover and search
@@ -23,7 +23,7 @@ info:
   title: USPTO Data Set API
   contact:
     name: Open Data Portal
-    url: "https://developer.uspto.gov"
+    url: 'https://developer.uspto.gov'
     email: developer@uspto.gov
 tags:
   - name: metadata
@@ -38,28 +38,28 @@ paths:
       operationId: list-data-sets
       summary: List available data sets
       responses:
-        "200":
+        '200':
           description: Returns a list of data sets
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/dataSetList"
+                $ref: '#/components/schemas/dataSetList'
               example:
                 {
-                  "total": 2,
-                  "apis":
+                  'total': 2,
+                  'apis':
                     [
                       {
-                        "apiKey": "oa_citations",
-                        "apiVersionNumber": "v1",
-                        "apiUrl": "https://developer.uspto.gov/ds-api/oa_citations/v1/fields",
-                        "apiDocumentationUrl": "https://developer.uspto.gov/ds-api-docs/index.html?url=https://developer.uspto.gov/ds-api/swagger/docs/oa_citations.json",
+                        'apiKey': 'oa_citations',
+                        'apiVersionNumber': 'v1',
+                        'apiUrl': 'https://developer.uspto.gov/ds-api/oa_citations/v1/fields',
+                        'apiDocumentationUrl': 'https://developer.uspto.gov/ds-api-docs/index.html?url=https://developer.uspto.gov/ds-api/swagger/docs/oa_citations.json',
                       },
                       {
-                        "apiKey": "cancer_moonshot",
-                        "apiVersionNumber": "v1",
-                        "apiUrl": "https://developer.uspto.gov/ds-api/cancer_moonshot/v1/fields",
-                        "apiDocumentationUrl": "https://developer.uspto.gov/ds-api-docs/index.html?url=https://developer.uspto.gov/ds-api/swagger/docs/cancer_moonshot.json",
+                        'apiKey': 'cancer_moonshot',
+                        'apiVersionNumber': 'v1',
+                        'apiUrl': 'https://developer.uspto.gov/ds-api/cancer_moonshot/v1/fields',
+                        'apiDocumentationUrl': 'https://developer.uspto.gov/ds-api-docs/index.html?url=https://developer.uspto.gov/ds-api/swagger/docs/cancer_moonshot.json',
                       },
                     ],
                 }
@@ -79,20 +79,20 @@ paths:
       parameters:
         - name: dataset
           in: path
-          description: "Name of the dataset."
+          description: 'Name of the dataset.'
           required: true
-          example: "oa_citations"
+          example: 'oa_citations'
           schema:
             type: string
         - name: version
           in: path
           description: Version of the dataset.
           required: true
-          example: "v1"
+          example: 'v1'
           schema:
             type: string
       responses:
-        "200":
+        '200':
           description: >-
             The dataset API for the given version is found and it is accessible
             to consume.
@@ -100,7 +100,7 @@ paths:
             application/json:
               schema:
                 type: string
-        "404":
+        '404':
           description: >-
             The combination of dataset name and version is not found in the
             system or it is not published yet to be consumed by public.
@@ -135,13 +135,13 @@ paths:
             default: v1
         - name: dataset
           in: path
-          description: "Name of the dataset. In this case, the default value is oa_citations"
+          description: 'Name of the dataset. In this case, the default value is oa_citations'
           required: true
           schema:
             type: string
             default: oa_citations
       responses:
-        "200":
+        '200':
           description: successful operation
           content:
             application/json:
@@ -151,7 +151,7 @@ paths:
                   type: object
                   additionalProperties:
                     type: object
-        "404":
+        '404':
           description: No matching record found for the given criteria.
       requestBody:
         content:
@@ -168,7 +168,7 @@ paths:
                     record objects. Each record structure would consist of all
                     the fields and their corresponding values.
                   type: string
-                  default: "*:*"
+                  default: '*:*'
                 start:
                   description: Starting record number. Default value is 0.
                   type: integer
diff --git a/examples/v3.1/non-oauth-scopes.yaml b/examples/v3.1/non-oauth-scopes.yaml
index 0a79135..2e20847 100644
--- a/examples/v3.1/non-oauth-scopes.yaml
+++ b/examples/v3.1/non-oauth-scopes.yaml
@@ -7,12 +7,12 @@ paths:
     get:
       security:
         - bearerAuth:
-            - "read:users"
-            - "public"
+            - 'read:users'
+            - 'public'
 components:
   securitySchemes:
     bearerAuth:
       type: http
       scheme: bearer
       bearerFormat: jwt
-      description: "note: non-oauth scopes are not defined at the securityScheme level"
+      description: 'note: non-oauth scopes are not defined at the securityScheme level'
diff --git a/examples/v3.1/tictactoe.yaml b/examples/v3.1/tictactoe.yaml
index ddf3058..3541543 100644
--- a/examples/v3.1/tictactoe.yaml
+++ b/examples/v3.1/tictactoe.yaml
@@ -17,12 +17,12 @@ paths:
         - Gameplay
       operationId: get-board
       responses:
-        "200":
-          description: "OK"
+        '200':
+          description: 'OK'
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/status"
+                $ref: '#/components/schemas/status'
       security:
         - apiKey: []
         - app2AppOauth:
@@ -31,8 +31,8 @@ paths:
   # Single square operations
   /board/{row}/{column}:
     parameters:
-      - $ref: "#/components/parameters/rowParam"
-      - $ref: "#/components/parameters/columnParam"
+      - $ref: '#/components/parameters/rowParam'
+      - $ref: '#/components/parameters/columnParam'
     get:
       summary: Get a single board square
       description: Retrieves the requested square.
@@ -40,19 +40,19 @@ paths:
         - Gameplay
       operationId: get-square
       responses:
-        "200":
-          description: "OK"
+        '200':
+          description: 'OK'
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/mark"
-        "400":
+                $ref: '#/components/schemas/mark'
+        '400':
           description: The provided parameters are incorrect
           content:
             text/html:
               schema:
-                $ref: "#/components/schemas/errorMessage"
-              example: "Illegal coordinates"
+                $ref: '#/components/schemas/errorMessage'
+              example: 'Illegal coordinates'
       security:
         - bearerHttpAuthentication: []
         - user2AppOauth:
@@ -68,27 +68,27 @@ paths:
         content:
           application/json:
             schema:
-              $ref: "#/components/schemas/mark"
+              $ref: '#/components/schemas/mark'
       responses:
-        "200":
-          description: "OK"
+        '200':
+          description: 'OK'
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/status"
-        "400":
+                $ref: '#/components/schemas/status'
+        '400':
           description: The provided parameters are incorrect
           content:
             text/html:
               schema:
-                $ref: "#/components/schemas/errorMessage"
+                $ref: '#/components/schemas/errorMessage'
               examples:
                 illegalCoordinates:
-                  value: "Illegal coordinates."
+                  value: 'Illegal coordinates.'
                 notEmpty:
-                  value: "Square is not empty."
+                  value: 'Square is not empty.'
                 invalidMark:
-                  value: "Invalid Mark (X or O)."
+                  value: 'Invalid Mark (X or O).'
       security:
         - bearerHttpAuthentication: []
         - user2AppOauth:
@@ -102,14 +102,14 @@ components:
       in: path
       required: true
       schema:
-        $ref: "#/components/schemas/coordinate"
+        $ref: '#/components/schemas/coordinate'
     columnParam:
       description: Board column (horizontal coordinate)
       name: column
       in: path
       required: true
       schema:
-        $ref: "#/components/schemas/coordinate"
+        $ref: '#/components/schemas/coordinate'
   schemas:
     errorMessage:
       type: string
@@ -122,9 +122,9 @@ components:
       example: 1
     mark:
       type: string
-      enum: [".", "X", "O"]
+      enum: ['.', 'X', 'O']
       description: Possible values for a board square. `.` means empty square.
-      example: "."
+      example: '.'
     board:
       type: array
       maxItems: 3
@@ -134,19 +134,19 @@ components:
         maxItems: 3
         minItems: 3
         items:
-          $ref: "#/components/schemas/mark"
+          $ref: '#/components/schemas/mark'
     winner:
       type: string
-      enum: [".", "X", "O"]
+      enum: ['.', 'X', 'O']
       description: Winner of the game. `.` means nobody has won yet.
-      example: "."
+      example: '.'
     status:
       type: object
       properties:
         winner:
-          $ref: "#/components/schemas/winner"
+          $ref: '#/components/schemas/winner'
         board:
-          $ref: "#/components/schemas/board"
+          $ref: '#/components/schemas/board'
   securitySchemes:
     defaultApiKey:
       description: API key provided in console
diff --git a/examples/v3.1/webhook-example.yaml b/examples/v3.1/webhook-example.yaml
index 44fc73a..7aa10cf 100644
--- a/examples/v3.1/webhook-example.yaml
+++ b/examples/v3.1/webhook-example.yaml
@@ -13,9 +13,9 @@ webhooks:
         content:
           application/json:
             schema:
-              $ref: "#/components/schemas/Pet"
+              $ref: '#/components/schemas/Pet'
       responses:
-        "200":
+        '200':
           description: Return a 200 status to indicate that the data was received successfully
 
 components: