diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1cd0439..87261b7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -32,7 +32,10 @@ jobs:
         run: pip install pyinstaller
 
       - name: Syntax check
-        run: python -m py_compile setup_tool.py setup_tool_dynamic.py remote_packages.py
+        run: python -m py_compile setup_tool.py setup_tool_dynamic.py remote_packages.py tests/test_safety.py
+
+      - name: Unit safety tests
+        run: python -m unittest discover -s tests -v
 
       - name: Build EXE
         run: >