diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 80df927..05245af 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,6 +21,7 @@ jobs:
         pip install --user black~=22.3
         pip install --user flake8~=4.0
         pip install --user pytest
+        pip install --user validate-pyproject[all]
 
     - name: Install Partition Manager
       run: |
@@ -38,6 +39,10 @@ jobs:
       run: |
         python -m flake8
 
+    - name: Checking pyproject
+      run: |
+        python -m validate-pyproject pyproject.toml
+
   test:
     runs-on: ubuntu-latest