diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 55bb49d4..4a327c05 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -44,13 +44,13 @@ jobs:
             jid: 5
             goal: "build"
             gamos: "windows"
-            python: ${{ BUILD_PYTHON_VERSION }}
+            python: 3.9.0 
           - os: windows-2019
             jid: 6
             goal: "build"
             gamos: "windows"
             PLATFORM: "x86"
-            python: ${{ BUILD_PYTHON_VERSION }}
+            python: 3.9.0
           - os: ubuntu-20.04
             goal: "test"
             python: "3.6"