diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3ae3c11..ed7fd2c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -33,7 +33,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: ["2.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["2.7", "3.5", "3.6", "3.7", "3.8", "3.9", "3.10", "3.11"]
         # 3.12-dev doesn't work yet due to lxml
     steps:
       - uses: actions/checkout@v3