diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index eff2ed9..a91c5d0 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.x']
+        python-version: ['3.9']
 
     steps:
       - uses: actions/checkout@v3