diff --git a/.github/workflows/test-without-model.yml b/.github/workflows/test-without-model.yml
index 150dc21..3bef4f1 100644
--- a/.github/workflows/test-without-model.yml
+++ b/.github/workflows/test-without-model.yml
@@ -44,7 +44,7 @@ jobs:
         id: check_changes
         run: |
           MODEL_CHANGED=false
-          if git diff --name-only origin/${{ github.head_ref }} | grep -c ${{ env.WORKING_DIRECTORY }}/application/models/ > 0; then
+          if git diff --name-only HEAD | grep -c ${{ env.WORKING_DIRECTORY }}/application/models/ > 0; then
             echo $MODEL_CHANGED
             MODEL_CHANGED=true
           fi
diff --git a/application/application/models/user.py b/application/application/models/user.py
index 7a94421..9dc36fa 100644
--- a/application/application/models/user.py
+++ b/application/application/models/user.py
@@ -7,7 +7,7 @@
 
 
 class User(AbstractUser):
-    """システムユーザModel"""
+    """システムユーザ"""
 
     username_validator = UnicodeUsernameValidator()