diff --git a/.github/workflows/next.yml b/.github/workflows/next.yml
index e289a6b3ed..cc87d37708 100644
--- a/.github/workflows/next.yml
+++ b/.github/workflows/next.yml
@@ -15,7 +15,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/pr-clean-deployments.yml b/.github/workflows/pr-clean-deployments.yml
index 57c8c6eb43..813ea316df 100644
--- a/.github/workflows/pr-clean-deployments.yml
+++ b/.github/workflows/pr-clean-deployments.yml
@@ -19,7 +19,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/pr-storybook.yml b/.github/workflows/pr-storybook.yml
index f05fdba6d5..12b9c0c9a6 100644
--- a/.github/workflows/pr-storybook.yml
+++ b/.github/workflows/pr-storybook.yml
@@ -19,7 +19,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/pr-test-app.yml b/.github/workflows/pr-test-app.yml
index 0ccb398fac..614afd9116 100644
--- a/.github/workflows/pr-test-app.yml
+++ b/.github/workflows/pr-test-app.yml
@@ -19,7 +19,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 7a5942c2a6..b9493e24e6 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -18,7 +18,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [18.x, 20.x]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/push-preview-release.yml b/.github/workflows/push-preview-release.yml
index b3744397a0..1634740896 100644
--- a/.github/workflows/push-preview-release.yml
+++ b/.github/workflows/push-preview-release.yml
@@ -20,7 +20,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
 
     steps:
       - uses: actions/checkout@v4
@@ -45,7 +45,7 @@ jobs:
     if: needs.version.outputs.latest-version != needs.version.outputs.package-version
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
 
     environment:
       name: release
diff --git a/.github/workflows/push-release.yml b/.github/workflows/push-release.yml
index 5d81731b34..972215c001 100644
--- a/.github/workflows/push-release.yml
+++ b/.github/workflows/push-release.yml
@@ -19,7 +19,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
 
     steps:
       - uses: actions/checkout@v4
@@ -44,7 +44,7 @@ jobs:
     if: needs.version.outputs.latest-version != needs.version.outputs.package-version
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
 
     environment:
       name: release
@@ -87,7 +87,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index 9129512599..6ee30e6401 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -15,7 +15,7 @@ jobs:
     if: github.repository == 'microsoftgraph/microsoft-graph-toolkit'
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/run-release-please.yml b/.github/workflows/run-release-please.yml
index cc9fc50756..6fdfb9838a 100644
--- a/.github/workflows/run-release-please.yml
+++ b/.github/workflows/run-release-please.yml
@@ -13,10 +13,10 @@ jobs:
   release-please:
     runs-on: ubuntu-latest
     steps:
-      - name: Use Node.js 18.x
+      - name: Use Node.js 20.x
         uses: actions/setup-node@v3
         with:
-          node-version: 18.x
+          node-version: 20.x
           registry-url: 'https://registry.npmjs.org'
       - uses: google-github-actions/release-please-action@v3
         id: release
diff --git a/.github/workflows/storybook.yml b/.github/workflows/storybook.yml
index 31d64a0c75..8d76c0d4cd 100644
--- a/.github/workflows/storybook.yml
+++ b/.github/workflows/storybook.yml
@@ -20,7 +20,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [20.x]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.storybook/rollup.config.js b/.storybook/rollup.config.mjs
similarity index 100%
rename from .storybook/rollup.config.js
rename to .storybook/rollup.config.mjs
diff --git a/package.json b/package.json
index 693a1ecfdf..2d531cfdbb 100644
--- a/package.json
+++ b/package.json
@@ -48,8 +48,8 @@
     "storybook": "storybook dev -p 6006",
     "storybook:dev": "npm run build:compile && npm run analyze",
     "storybook:watch": "npm-run-all --parallel watch storybook:bundle:watch storybook",
-    "storybook:bundle": "rollup -c ./.storybook/rollup.config.js",
-    "storybook:bundle:watch": "rollup -c ./.storybook/rollup.config.js --watch",
+    "storybook:bundle": "rollup -c ./.storybook/rollup.config.mjs",
+    "storybook:bundle:watch": "rollup -c ./.storybook/rollup.config.mjs --watch",
     "storybook:build": "npm run storybook:bundle && npm run storybook:dev && storybook build && cpx .storybook/CNAME storybook-static && node ./.storybook/post-process-index-file.js 'Microsoft Graph Toolkit Playground' ../",
     "csp": "node ./.storybook/post-process-index-file.js 'Microsoft Graph Toolkit Playground' ../",
     "setLicense": "gulp setLicense",