diff --git a/.github/workflows/publish_release.yml b/.github/workflows/publish_release.yml
index 4e2d9d1..0d9233f 100644
--- a/.github/workflows/publish_release.yml
+++ b/.github/workflows/publish_release.yml
@@ -21,7 +21,7 @@ jobs:
       - name: Publish release
         run: ./gradlew publish --no-daemon --no-parallel --stacktrace -PVERSION_NAME=${{github.event.release.name}}
         env:
-          ORG_GRADLE_PROJECT_mavenCentralUsername ${{ secrets.MAVEN_CENTRAL_REPOSITORY_USERNAME }}
+          ORG_GRADLE_PROJECT_mavenCentralUsername: ${{ secrets.MAVEN_CENTRAL_REPOSITORY_USERNAME }}
           ORG_GRADLE_PROJECT_mavenCentralPassword: ${{ secrets.MAVEN_CENTRAL_REPOSITORY_PASSWORD }}
           ORG_GRADLE_PROJECT_SIGNING_PRIVATE_KEY: ${{ secrets.GPG_SIGNING_PRIVATE_KEY }}
           ORG_GRADLE_PROJECT_SIGNING_PASSWORD: ${{ secrets.GPG_SIGNING_PASSWORD }}