diff --git a/.github/workflows/validate.yaml b/.github/workflows/validate.yaml
index e0638849b..b36db7652 100644
--- a/.github/workflows/validate.yaml
+++ b/.github/workflows/validate.yaml
@@ -73,6 +73,7 @@ jobs:
         run: |
           black --config black.toml --check ./rdflib || true
           flake8 --exit-zero rdflib
+          mypy --show-error-context --show-error-codes rdflib
           if [ "${{ matrix.os }}" == "windows-latest" ]
           then
             pytest -ra --cov