diff --git a/.github/workflows/common-library-ci.yml b/.github/workflows/common-library-ci.yml
index 55b8b57..b0d83f3 100644
--- a/.github/workflows/common-library-ci.yml
+++ b/.github/workflows/common-library-ci.yml
@@ -58,7 +58,7 @@ jobs:
 
 
     - name: Format check with black
-      run: black --check --diff --color .
+      run: black --check --diff --color --line-length 120 .