diff --git a/.github/workflows/conda-package-build.yml b/.github/workflows/conda-package-build.yml
index ef4d3ea..1d94539 100644
--- a/.github/workflows/conda-package-build.yml
+++ b/.github/workflows/conda-package-build.yml
@@ -14,8 +14,8 @@ jobs:
       fail-fast: false
       max-parallel: 3
       matrix:
-        os: [ ubuntu-latest , macos-latest , windows-latest]
-        python-minor-version: [7,8,9]
+        os: [ ubuntu-latest]
+        python-minor-version: [9]
         isMaster:
           - ${{ github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/dev') }}
         exclude: