diff --git a/.github/workflows/changelog-for-milestone.yml b/.github/workflows/changelog-for-milestone.yml
index d4b5971..875691d 100644
--- a/.github/workflows/changelog-for-milestone.yml
+++ b/.github/workflows/changelog-for-milestone.yml
@@ -40,7 +40,7 @@ jobs:
         with:
           groupId: spring-io
           artifactId: github-changelog-generator
-          version: $GENERATOR_VERSION
+          version: ${{ env.GENERATOR_VERSION }}
           outputDirectory: .
 
       - name: Set up JDK