diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index dc29a242..376e9acd 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -24,7 +24,7 @@ jobs:
         pip install build
     - name: Build package
       env:
-        PACKAGE_VERSION: $GITHUB_REF
+        PACKAGE_VERSION: "$GITHUB_REF"
       run: |
         python -m build
     - name: Publish package