diff --git a/.github/workflows/check-only.yml b/.github/workflows/check-only.yml
index 58607b91..afda2fe7 100644
--- a/.github/workflows/check-only.yml
+++ b/.github/workflows/check-only.yml
@@ -31,6 +31,11 @@ jobs:
           black --version
           black --check .
 
+      - name: Flake8
+        run: |
+          flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+          flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+
       - name: Tokens
         shell: python
         env: