diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 62e9864..8d19143 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,6 +21,9 @@ defaults:
   run:
     shell: bash
 
+env:
+  PYTHON_VERSION: "3.10"
+  
 jobs:
 
   ###########################################################
@@ -43,7 +46,7 @@ jobs:
 
     - uses: actions/setup-python@v2
       with:
-        python-version: "3.10"
+        python-version: "${{ env.PYTHON_VERSION }}"
 
     - name: Install python dependencies
       run: |
@@ -57,7 +60,7 @@ jobs:
         pip install pdm
 
         # https://github.com/pdm-project/pdm/issues/728#issuecomment-1021771200
-        pip install -t __pypackages__/3.10/lib selenium
+        pip install -t __pypackages__/${{ env.PYTHON_VERSION }}/lib selenium
 
         pdm install -v