diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a2b156443..4f8f41ca4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,6 +15,7 @@ jobs:
           - 3.6
           - 3.7
           - 3.8
+          - 3.9
         os:
           - ubuntu-latest
           - macos-latest