diff --git a/.github/workflows/pyinstaller-builds-actions-PIP-TAR.yml b/.github/workflows/pyinstaller-builds-actions-PIP-TAR.yml
index ab39bb8..0291003 100644
--- a/.github/workflows/pyinstaller-builds-actions-PIP-TAR.yml
+++ b/.github/workflows/pyinstaller-builds-actions-PIP-TAR.yml
@@ -20,7 +20,7 @@ jobs:
         environment-name: test
         environment-file: environment.yml
         extra-specs:
-            python=3.9
+            python=3.10
     - name: pip install cadquery CQ-editor ... etc
       shell: bash --login {0}
       run: |