diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6024ce5..b71d9e5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest #, macos-latest]  # running tests on both Linux and MacOs environments
     strategy:
       matrix:
-        python-version: [3.5] #[3.6, 3.7, 3.8]
+        python-version: [3.6, 3.7, 3.8]
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python ${{ matrix.python-version }}