diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 00551ff..30f5f8c 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -18,7 +18,7 @@ jobs:
           cache: npm
       - run: npm ci
       - name: Set version in src/version.js
-        run: echo "export const version = '${GITHUB_REF_NAME#v}';" > src/version.js
+        run: echo "export const version = '${GITHUB_REF_NAME#v}';" > src/version.ts
       - run: |
           npm version --no-git-tag-version ${GITHUB_REF_NAME#v}
           npm publish
diff --git a/src/utils.ts b/src/utils.ts
index d082440..73543bc 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,4 +1,4 @@
-import { version } from './version'
+import { version } from './version.js'
 import type { Fetch, ErrorResponse } from './interfaces.js'
 
 class ResponseError extends Error {