diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1f428407..46d4da8f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,6 +35,9 @@ jobs:
       run: |
         pipenv run black
       working-directory: ./backend
+    - name: mypy
+      run: |
+        pipenv run mypy
     - name: Run tests
       run: |
         pipenv run test