diff --git a/.github/workflows/register-package.yaml b/.github/workflows/register-package.yaml
index aedd777..1956c57 100644
--- a/.github/workflows/register-package.yaml
+++ b/.github/workflows/register-package.yaml
@@ -30,7 +30,7 @@ jobs:
       - name: Authenticate with GCP
         uses: google-github-actions/auth@v0.5.0
         with:
-          credentials: ${{ secrets.GCP_SA_KEY_BASE64 }}
+          credentials: ${{ secrets.GCP_SA_KEY }}
 
       - name: Create .pypirc file
         run: |