diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index df130db..c562e56 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -29,3 +29,6 @@ jobs:
       - name: Run tests with coverage
         run: pytest
 
+      - name: Check code style with black
+        run: black --check .
+
diff --git a/requirements.txt b/requirements.txt
index 6f21dfb..1f012d7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,5 @@
 pydot
 pytest
 pytest-cov
-numpy
\ No newline at end of file
+numpy
+black
\ No newline at end of file