diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index c6a4ac6..3669766 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -17,7 +17,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install flake8 discord pytest
+        pip install flake8 discord pytest schema
     - name: Analysing the code with flake8
       run: |
         flake8 --max-line-length 120 $(git ls-files '*.py')