diff --git a/.github/workflows/build_docs.yml b/.github/workflows/build_docs.yml
index 7124c883..44dee2b5 100644
--- a/.github/workflows/build_docs.yml
+++ b/.github/workflows/build_docs.yml
@@ -96,7 +96,7 @@ jobs:
   publish-pypi:
     runs-on: ubuntu-latest
     needs: build
-    if: needs.build.outputs.release == true
+    if: needs.build.outputs.release == 'true'
 
     environment:
       name: pypi