diff --git a/.changeset/great-trains-doubt.md b/.changeset/great-trains-doubt.md
index 21b5d0e6c..f49af4497 100644
--- a/.changeset/great-trains-doubt.md
+++ b/.changeset/great-trains-doubt.md
@@ -4,4 +4,20 @@
 
 deps: Prettier 3.2
 
+A notable change in this release is the application of trailing newlines to JSONC files, including `tsconfig.json`:
+
+```diff
+{
+  "compilerOptions": {
+    "lib": ["ES2022"],
+    "outDir": "lib",
+-   "target": "ES2022"
++   "target": "ES2022",
+  },
+  "exclude": ["lib*/**/*"],
+- "extends": "skuba/config/tsconfig.json"
++ "extends": "skuba/config/tsconfig.json",
+}
+```
+
 See the [release notes](https://prettier.io/blog/2024/01/12/3.2.0) for more information.
diff --git a/.changeset/little-goats-chew.md b/.changeset/little-goats-chew.md
new file mode 100644
index 000000000..08987fb19
--- /dev/null
+++ b/.changeset/little-goats-chew.md
@@ -0,0 +1,7 @@
+---
+'skuba': patch
+---
+
+build: Apply trailing newlines to `skuba/config/tsconfig.json`
+
+This aligns with Prettier 3.2 formatting behaviour. If your project references this file in a non-standard manner outside of the `tsconfig.json#/extends` field, ensure that you are using a JSONC-compatible parser.
diff --git a/config/tsconfig.json b/config/tsconfig.json
index f31eab441..5e8a762ef 100644
--- a/config/tsconfig.json
+++ b/config/tsconfig.json
@@ -5,7 +5,7 @@
     "moduleResolution": "node",
     "resolveJsonModule": true,
     "noUnusedLocals": false,
-    "noUnusedParameters": false
+    "noUnusedParameters": false,
   },
-  "extends": "tsconfig-seek"
+  "extends": "tsconfig-seek",
 }
diff --git a/integration/base/fixable/tsconfig.json b/integration/base/fixable/tsconfig.json
index abaf52a88..b435e0620 100644
--- a/integration/base/fixable/tsconfig.json
+++ b/integration/base/fixable/tsconfig.json
@@ -3,7 +3,7 @@
     "incremental": true,
     "moduleResolution": "node",
     "outDir": "lib",
-    "skipLibCheck": true
+    "skipLibCheck": true,
   },
-  "extends": "tsconfig-seek"
+  "extends": "tsconfig-seek",
 }
diff --git a/integration/base/ok/tsconfig.json b/integration/base/ok/tsconfig.json
index abaf52a88..b435e0620 100644
--- a/integration/base/ok/tsconfig.json
+++ b/integration/base/ok/tsconfig.json
@@ -3,7 +3,7 @@
     "incremental": true,
     "moduleResolution": "node",
     "outDir": "lib",
-    "skipLibCheck": true
+    "skipLibCheck": true,
   },
-  "extends": "tsconfig-seek"
+  "extends": "tsconfig-seek",
 }
diff --git a/integration/base/patch/tsconfig.json b/integration/base/patch/tsconfig.json
index abaf52a88..b435e0620 100644
--- a/integration/base/patch/tsconfig.json
+++ b/integration/base/patch/tsconfig.json
@@ -3,7 +3,7 @@
     "incremental": true,
     "moduleResolution": "node",
     "outDir": "lib",
-    "skipLibCheck": true
+    "skipLibCheck": true,
   },
-  "extends": "tsconfig-seek"
+  "extends": "tsconfig-seek",
 }
diff --git a/integration/base/unfixable/tsconfig.json b/integration/base/unfixable/tsconfig.json
index abaf52a88..b435e0620 100644
--- a/integration/base/unfixable/tsconfig.json
+++ b/integration/base/unfixable/tsconfig.json
@@ -3,7 +3,7 @@
     "incremental": true,
     "moduleResolution": "node",
     "outDir": "lib",
-    "skipLibCheck": true
+    "skipLibCheck": true,
   },
-  "extends": "tsconfig-seek"
+  "extends": "tsconfig-seek",
 }
diff --git a/package.json b/package.json
index 986e83891..298e1c28a 100644
--- a/package.json
+++ b/package.json
@@ -102,8 +102,8 @@
     "npm-run-path": "^4.0.1",
     "npm-which": "^3.0.1",
     "picomatch": "^3.0.0",
-    "prettier": "~3.2.0",
-    "prettier-plugin-packagejson": "^2.4.6",
+    "prettier": "~3.2.4",
+    "prettier-plugin-packagejson": "^2.4.9",
     "read-pkg-up": "^7.0.1",
     "semantic-release": "^21.0.0",
     "serialize-error": "^8.0.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 6e4cd5700..dab4ffd69 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -111,11 +111,11 @@ dependencies:
     specifier: ^3.0.0
     version: 3.0.1
   prettier:
-    specifier: ~3.2.0
-    version: 3.2.2
+    specifier: ~3.2.4
+    version: 3.2.4
   prettier-plugin-packagejson:
-    specifier: ^2.4.6
-    version: 2.4.8(prettier@3.2.2)
+    specifier: ^2.4.9
+    version: 2.4.9(prettier@3.2.4)
   read-pkg-up:
     specifier: ^7.0.1
     version: 7.0.1
@@ -7741,17 +7741,17 @@ packages:
     engines: {node: '>= 0.8.0'}
     dev: false
 
-  /prettier-plugin-packagejson@2.4.8(prettier@3.2.2):
-    resolution: {integrity: sha512-ZK37c6pRUKeUIpQWNEdMgNUiGSG5BTfeeAIA01mRjVGTfWxxVzM55Cs+LaHyweFJbEgkgCNsqMA3LGEAjfOPtA==}
+  /prettier-plugin-packagejson@2.4.9(prettier@3.2.4):
+    resolution: {integrity: sha512-b3Q7agXVqxK3UpYEJr0xLD51SxriYXESWUCjmxOBUGqnPFZOg9jZGZ+Ptzq252I6OqzXN2rj1tJIFq6KOGLLJw==}
     peerDependencies:
       prettier: '>= 1.16.0'
     peerDependenciesMeta:
       prettier:
         optional: true
     dependencies:
-      prettier: 3.2.2
+      prettier: 3.2.4
       sort-package-json: 2.6.0
-      synckit: 0.8.8
+      synckit: 0.9.0
     dev: false
 
   /prettier@2.8.8:
@@ -7760,8 +7760,8 @@ packages:
     hasBin: true
     dev: true
 
-  /prettier@3.2.2:
-    resolution: {integrity: sha512-HTByuKZzw7utPiDO523Tt2pLtEyK7OibUD9suEJQrPUCYQqrHr74GGX6VidMrovbf/I50mPqr8j/II6oBAuc5A==}
+  /prettier@3.2.4:
+    resolution: {integrity: sha512-FWu1oLHKCrtpO1ypU6J0SbK2d9Ckwysq6bHj/uaCP26DxrPpppCLQRGVuqAxSTvhF00AcvDRyYrLNW7ocBhFFQ==}
     engines: {node: '>=14'}
     hasBin: true
     dev: false
@@ -9052,6 +9052,14 @@ packages:
       tslib: 2.6.2
     dev: false
 
+  /synckit@0.9.0:
+    resolution: {integrity: sha512-7RnqIMq572L8PeEzKeBINYEJDDxpcH8JEgLwUqBd3TkofhFRbkq4QLR0u+36avGAhCRbk2nnmjcW9SE531hPDg==}
+    engines: {node: ^14.18.0 || >=16.0.0}
+    dependencies:
+      '@pkgr/core': 0.1.0
+      tslib: 2.6.2
+    dev: false
+
   /tapable@2.2.1:
     resolution: {integrity: sha512-GNzQvQTOIP6RyTfE2Qxb8ZVlNmw0n88vp1szwWRimP02mnTsx3Wtn5qRdqY9w2XduFNUgvOwhNnQsjwCp+kqaQ==}
     engines: {node: '>=6'}
diff --git a/src/cli/configure/analysis/__snapshots__/project.test.ts.snap b/src/cli/configure/analysis/__snapshots__/project.test.ts.snap
index 64b823e40..0e1fe4e3a 100644
--- a/src/cli/configure/analysis/__snapshots__/project.test.ts.snap
+++ b/src/cli/configure/analysis/__snapshots__/project.test.ts.snap
@@ -145,32 +145,6 @@ export {};
     "version": "0.0.0-semantically-released"
   }
 }
-",
-    "operation": "A",
-  },
-  "tsconfig.build.json": {
-    "data": "{
-  "exclude": ["**/__mocks__/**/*", "**/*.test.ts", "src/testing/**/*"],
-  "extends": "./tsconfig.json",
-  "include": ["src/**/*"]
-}
-",
-    "operation": "A",
-  },
-  "tsconfig.json": {
-    "data": "{
-  "compilerOptions": {
-    "baseUrl": ".",
-    "lib": ["ES2022"],
-    "outDir": "lib",
-    "paths": {
-      "src": ["src"]
-    },
-    "target": "ES2022"
-  },
-  "exclude": ["lib*/**/*"],
-  "extends": "skuba/config/tsconfig.json"
-}
 ",
     "operation": "A",
   },
diff --git a/src/cli/configure/modules/index.ts b/src/cli/configure/modules/index.ts
index b87c7722f..7dd637b87 100644
--- a/src/cli/configure/modules/index.ts
+++ b/src/cli/configure/modules/index.ts
@@ -9,7 +9,6 @@ import { prettierModule } from './prettier';
 import { renovateModule } from './renovate';
 import { serverlessModule } from './serverless';
 import { skubaDiveModule } from './skubaDive';
-import { tsconfigModule } from './tsconfig';
 import { tslintModule } from './tslint';
 
 export const loadModules = (opts: Options): Promise<Module[]> =>
@@ -24,7 +23,6 @@ export const loadModules = (opts: Options): Promise<Module[]> =>
       renovateModule,
       serverlessModule,
       skubaDiveModule,
-      tsconfigModule,
       tslintModule,
     ].map((createModule) => createModule(opts)),
   );
diff --git a/src/cli/configure/modules/tsconfig.test.ts b/src/cli/configure/modules/tsconfig.test.ts
deleted file mode 100644
index e472e30b9..000000000
--- a/src/cli/configure/modules/tsconfig.test.ts
+++ /dev/null
@@ -1,223 +0,0 @@
-import { parseObject } from '../processing/json';
-import {
-  assertDefined,
-  defaultOpts,
-  defaultPackageOpts,
-  executeModule,
-} from '../testing/module';
-import type { TsConfigJson } from '../types';
-
-import { tsconfigModule } from './tsconfig';
-
-describe('tsconfigModule', () => {
-  it('works from scratch', async () => {
-    const inputFiles = {};
-
-    const outputFiles = await executeModule(
-      tsconfigModule,
-      inputFiles,
-      defaultOpts,
-    );
-
-    expect(outputFiles['tsconfig.build.json']).toContain('./tsconfig.json');
-    expect(outputFiles['tsconfig.json']).toContain(
-      'skuba/config/tsconfig.json',
-    );
-
-    const outputData = parseObject(
-      outputFiles['tsconfig.json'],
-    ) as TsConfigJson;
-
-    assertDefined(outputData);
-    expect(outputData.compilerOptions!.baseUrl).toBe('.');
-    expect(outputData.compilerOptions!.paths).toEqual({ src: ['src'] });
-  });
-
-  it('disables module aliasing and retains comments for packages', async () => {
-    const inputFiles = {};
-
-    const outputFiles = await executeModule(
-      tsconfigModule,
-      inputFiles,
-      defaultPackageOpts,
-    );
-
-    expect(outputFiles['tsconfig.build.json']).toContain('./tsconfig.json');
-    expect(outputFiles['tsconfig.json']).toContain(
-      'skuba/config/tsconfig.json',
-    );
-
-    const outputData = parseObject(
-      outputFiles['tsconfig.json'],
-    ) as TsConfigJson;
-
-    assertDefined(outputData);
-    expect(outputData.compilerOptions!.baseUrl).toBeUndefined();
-    expect(outputData.compilerOptions!.paths).toBeUndefined();
-    expect(outputData.compilerOptions!.removeComments).toBe(false);
-  });
-
-  it('respects explicit comment removal for packages', async () => {
-    const inputFiles = {
-      'tsconfig.json': '{"compilerOptions": {"removeComments": true}}',
-    };
-
-    const outputFiles = await executeModule(
-      tsconfigModule,
-      inputFiles,
-      defaultPackageOpts,
-    );
-
-    const outputData = parseObject(
-      outputFiles['tsconfig.json'],
-    ) as TsConfigJson;
-
-    assertDefined(outputData);
-    expect(outputData.compilerOptions!.removeComments).toBe(true);
-  });
-
-  it('augments existing config', async () => {
-    const inputFiles = {
-      'tsconfig.build.json': '{}',
-      'tsconfig.json': JSON.stringify({
-        compilerOptions: {
-          lib: ['ES2020'],
-          target: 'ES2020',
-        },
-        exclude: ['.idea'],
-        include: ['src'],
-      }),
-      '.eslintrc.js': undefined,
-      '.prettierrc.toml': undefined,
-      'package.json': JSON.stringify({
-        name: 'secret-service',
-        prettier: {
-          extends: [],
-        },
-      }),
-    };
-
-    const outputFiles = await executeModule(
-      tsconfigModule,
-      inputFiles,
-      defaultOpts,
-    );
-
-    expect(outputFiles['tsconfig.build.json']).toBe(
-      inputFiles['tsconfig.build.json'],
-    );
-
-    const outputData = parseObject(
-      outputFiles['tsconfig.json'],
-    ) as TsConfigJson;
-
-    expect(outputData).toMatchInlineSnapshot(`
-      {
-        "compilerOptions": {
-          "baseUrl": ".",
-          "lib": [
-            "ES2020",
-          ],
-          "outDir": "lib",
-          "paths": {
-            "src": [
-              "src",
-            ],
-          },
-          "target": "ES2020",
-        },
-        "exclude": [
-          ".idea",
-          "lib*/**/*",
-        ],
-        "extends": "skuba/config/tsconfig.json",
-      }
-    `);
-  });
-
-  it('migrates divergent outDir', async () => {
-    const inputFiles = {
-      Dockerfile: `
-ARG DIR dist
-
-RUN echo redist
-
-FROM gcr.io/distroless/nodejs:16 AS runtime
-
-COPY --from=build /workdir/dist './dist'
-
-CMD ["dist/listen.js"]
-`,
-      'tsconfig.json': '{"compilerOptions": {"outDir": "dist/"}}',
-    };
-
-    const outputFiles = await executeModule(
-      tsconfigModule,
-      inputFiles,
-      defaultOpts,
-    );
-
-    expect(outputFiles.Dockerfile).toMatchInlineSnapshot(`
-      "
-      ARG DIR lib
-
-      RUN echo redist
-
-      FROM gcr.io/distroless/nodejs:16 AS runtime
-
-      COPY --from=build /workdir/lib './lib'
-
-      CMD ["lib/listen.js"]
-      "
-    `);
-
-    const outputData = parseObject(
-      outputFiles['tsconfig.json'],
-    ) as TsConfigJson;
-
-    assertDefined(outputData);
-    expect(outputData.compilerOptions!.outDir).toBe('lib');
-  });
-
-  it('removes duplicate lib patterns from  exclude option', async () => {
-    const inputFiles = {
-      'tsconfig.json':
-        '{"extends": "skuba/config/tsconfig.json", "exclude": ["lib", "lib/**/*"]}',
-    };
-
-    const outputFiles = await executeModule(
-      tsconfigModule,
-      inputFiles,
-      defaultOpts,
-    );
-
-    const outputData = parseObject(
-      outputFiles['tsconfig.json'],
-    ) as TsConfigJson;
-
-    assertDefined(outputData);
-    expect(outputData.extends).toBe('skuba/config/tsconfig.json');
-    expect(outputData.exclude).toStrictEqual(['lib*/**/*']);
-  });
-
-  it('retains include option after initial setup', async () => {
-    const inputFiles = {
-      'tsconfig.json':
-        '{"extends": "skuba/config/tsconfig.json", "include": ["src"]}',
-    };
-
-    const outputFiles = await executeModule(
-      tsconfigModule,
-      inputFiles,
-      defaultOpts,
-    );
-
-    const outputData = parseObject(
-      outputFiles['tsconfig.json'],
-    ) as TsConfigJson;
-
-    assertDefined(outputData);
-    expect(outputData.extends).toBe('skuba/config/tsconfig.json');
-    expect(outputData.include).toStrictEqual(['src']);
-  });
-});
diff --git a/src/cli/configure/modules/tsconfig.ts b/src/cli/configure/modules/tsconfig.ts
deleted file mode 100644
index 76b3a07b5..000000000
--- a/src/cli/configure/modules/tsconfig.ts
+++ /dev/null
@@ -1,108 +0,0 @@
-import { readBaseTemplateFile } from '../../../utils/template';
-import { hasProp, hasStringProp, isObject } from '../../../utils/validation';
-import { formatObject, parseObject } from '../processing/json';
-import { loadFiles } from '../processing/loadFiles';
-import { merge } from '../processing/record';
-import type { Module, Options } from '../types';
-
-export const tsconfigModule = async ({
-  firstRun,
-  type,
-}: Options): Promise<Module> => {
-  const [buildFile, baseFile] = await Promise.all([
-    readBaseTemplateFile('tsconfig.build.json'),
-    readBaseTemplateFile('tsconfig.json'),
-  ]);
-
-  const baseData = parseObject(baseFile);
-
-  // packages should not use module aliases
-  if (
-    type === 'package' &&
-    hasProp(baseData, 'compilerOptions') &&
-    isObject(baseData.compilerOptions)
-  ) {
-    delete baseData.compilerOptions.baseUrl;
-    delete baseData.compilerOptions.paths;
-  }
-
-  return {
-    ...loadFiles('Dockerfile'),
-
-    'tsconfig.build.json': (inputFile) => inputFile ?? buildFile,
-
-    'tsconfig.json': (inputFile, files, initialFiles) => {
-      const inputData = parseObject(inputFile);
-
-      let outDir: string | undefined;
-
-      if (
-        hasProp(inputData, 'compilerOptions') &&
-        hasStringProp(inputData.compilerOptions, 'outDir')
-      ) {
-        outDir = inputData.compilerOptions.outDir.replace(/\/$/, '');
-      }
-
-      // optimistically rewire Dockerfile for new output directory
-      if (outDir !== undefined && outDir !== 'lib') {
-        files.Dockerfile = files.Dockerfile?.replace(
-          new RegExp(`([^\\w])${outDir}([^\\w])`, 'g'),
-          '$1lib$2',
-        );
-      }
-
-      // existing project may target earlier Node.js versions than skuba
-      if (hasProp(baseData, 'compilerOptions')) {
-        if (
-          hasProp(baseData.compilerOptions, 'lib') &&
-          hasProp(inputData?.compilerOptions, 'lib')
-        ) {
-          delete baseData.compilerOptions.lib;
-        }
-
-        if (
-          hasProp(baseData.compilerOptions, 'target') &&
-          hasProp(inputData?.compilerOptions, 'target')
-        ) {
-          delete baseData.compilerOptions.target;
-        }
-      }
-
-      const outputData = merge(inputData ?? {}, baseData);
-
-      // Remove `lib/**/*` and `lib`, which duplicate `lib*/**/*`
-      if (hasProp(outputData, 'exclude') && Array.isArray(outputData.exclude)) {
-        const { exclude } = outputData;
-
-        const hasLibStar = exclude.includes('lib*/**/*');
-
-        outputData.exclude = exclude.filter(
-          (pattern: unknown) =>
-            !(hasLibStar && new Set<unknown>(['lib', 'lib/**/*']).has(pattern)),
-        );
-      }
-
-      // for optimal ESLinting, base config should compile all files and leave
-      // exclusions to .eslintignore and tsconfig.build.json
-      if (
-        hasProp(outputData, 'include') &&
-        !initialFiles['tsconfig.json']?.includes('skuba/config/tsconfig.json')
-      ) {
-        delete outputData.include;
-      }
-
-      // Retain comments for package documentation
-      if (
-        firstRun &&
-        type === 'package' &&
-        hasProp(outputData, 'compilerOptions') &&
-        isObject(outputData.compilerOptions) &&
-        !outputData.compilerOptions.removeComments
-      ) {
-        outputData.compilerOptions.removeComments = false;
-      }
-
-      return formatObject(outputData);
-    },
-  };
-};
diff --git a/template/base/tsconfig.json b/template/base/tsconfig.json
index 04898243f..7d0f6daf7 100644
--- a/template/base/tsconfig.json
+++ b/template/base/tsconfig.json
@@ -4,10 +4,10 @@
     "lib": ["ES2022"],
     "outDir": "lib",
     "paths": {
-      "src": ["src"]
+      "src": ["src"],
     },
-    "target": "ES2022"
+    "target": "ES2022",
   },
   "exclude": ["lib*/**/*"],
-  "extends": "skuba/config/tsconfig.json"
+  "extends": "skuba/config/tsconfig.json",
 }
diff --git a/template/koa-rest-api/tsconfig.json b/template/koa-rest-api/tsconfig.json
index 2e9b58e7d..6e2253f3b 100644
--- a/template/koa-rest-api/tsconfig.json
+++ b/template/koa-rest-api/tsconfig.json
@@ -5,14 +5,14 @@
       // open-telemetry/opentelemetry-js#3580
       "DOM",
 
-      "ES2022"
+      "ES2022",
     ],
     "outDir": "lib",
     "paths": {
-      "src": ["src"]
+      "src": ["src"],
     },
-    "target": "ES2022"
+    "target": "ES2022",
   },
   "exclude": ["lib*/**/*"],
-  "extends": "skuba/config/tsconfig.json"
+  "extends": "skuba/config/tsconfig.json",
 }
diff --git a/template/lambda-sqs-worker-cdk/tsconfig.json b/template/lambda-sqs-worker-cdk/tsconfig.json
index 04898243f..7d0f6daf7 100644
--- a/template/lambda-sqs-worker-cdk/tsconfig.json
+++ b/template/lambda-sqs-worker-cdk/tsconfig.json
@@ -4,10 +4,10 @@
     "lib": ["ES2022"],
     "outDir": "lib",
     "paths": {
-      "src": ["src"]
+      "src": ["src"],
     },
-    "target": "ES2022"
+    "target": "ES2022",
   },
   "exclude": ["lib*/**/*"],
-  "extends": "skuba/config/tsconfig.json"
+  "extends": "skuba/config/tsconfig.json",
 }
diff --git a/template/lambda-sqs-worker/tsconfig.json b/template/lambda-sqs-worker/tsconfig.json
index 04898243f..7d0f6daf7 100644
--- a/template/lambda-sqs-worker/tsconfig.json
+++ b/template/lambda-sqs-worker/tsconfig.json
@@ -4,10 +4,10 @@
     "lib": ["ES2022"],
     "outDir": "lib",
     "paths": {
-      "src": ["src"]
+      "src": ["src"],
     },
-    "target": "ES2022"
+    "target": "ES2022",
   },
   "exclude": ["lib*/**/*"],
-  "extends": "skuba/config/tsconfig.json"
+  "extends": "skuba/config/tsconfig.json",
 }
diff --git a/template/oss-npm-package/_package.json b/template/oss-npm-package/_package.json
index dd0aa5582..000c891d2 100644
--- a/template/oss-npm-package/_package.json
+++ b/template/oss-npm-package/_package.json
@@ -34,7 +34,7 @@
   },
   "dependencies": {},
   "devDependencies": {
-    "@types/node": "^16.18.3",
+    "@types/node": "^18.19.8",
     "commitizen": "^4.2.4",
     "skuba": "*"
   },
diff --git a/template/oss-npm-package/tsconfig.json b/template/oss-npm-package/tsconfig.json
index 54fe8e8df..a5fddcf46 100644
--- a/template/oss-npm-package/tsconfig.json
+++ b/template/oss-npm-package/tsconfig.json
@@ -3,8 +3,8 @@
     "lib": ["ES2022"],
     "outDir": "lib",
     "removeComments": false,
-    "target": "ES2022"
+    "target": "ES2022",
   },
   "exclude": ["lib*/**/*"],
-  "extends": "skuba/config/tsconfig.json"
+  "extends": "skuba/config/tsconfig.json",
 }
diff --git a/template/private-npm-package/_package.json b/template/private-npm-package/_package.json
index eb28ecd96..7ce9c9781 100644
--- a/template/private-npm-package/_package.json
+++ b/template/private-npm-package/_package.json
@@ -34,7 +34,7 @@
   },
   "dependencies": {},
   "devDependencies": {
-    "@types/node": "^16.18.3",
+    "@types/node": "^18.19.8",
     "commitizen": "^4.2.4",
     "skuba": "*"
   },
diff --git a/template/private-npm-package/tsconfig.json b/template/private-npm-package/tsconfig.json
index 54fe8e8df..a5fddcf46 100644
--- a/template/private-npm-package/tsconfig.json
+++ b/template/private-npm-package/tsconfig.json
@@ -3,8 +3,8 @@
     "lib": ["ES2022"],
     "outDir": "lib",
     "removeComments": false,
-    "target": "ES2022"
+    "target": "ES2022",
   },
   "exclude": ["lib*/**/*"],
-  "extends": "skuba/config/tsconfig.json"
+  "extends": "skuba/config/tsconfig.json",
 }
diff --git a/tsconfig.json b/tsconfig.json
index a3e7729ee..145cba16b 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -4,8 +4,8 @@
     "lib": ["ES2022"],
     "outDir": "lib",
     "removeComments": false,
-    "target": "ES2022"
+    "target": "ES2022",
   },
   "exclude": ["integration/**/*", "lib*/**/*", "template/**/*"],
-  "extends": "./config/tsconfig.json"
+  "extends": "./config/tsconfig.json",
 }