diff --git a/.github/workflows/lint_and_test.yml b/.github/workflows/lint_and_test.yml
index 47ce8cf..0db7ea8 100644
--- a/.github/workflows/lint_and_test.yml
+++ b/.github/workflows/lint_and_test.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.5, 3.6, 3.7, 3.8, 3.9]
+        python-version: [3.5, 3.6, 3.7, 3.8, 3.9, pypy3]
         image_size: ['true', 'false']
     steps:
       - uses: actions/checkout@v2