diff --git a/README.md b/README.md
index 89ef427..178f763 100644
--- a/README.md
+++ b/README.md
@@ -419,7 +419,7 @@ jobs:
       - uses: actions/setup-python@v2
       - uses: psf/black@stable
         with:
-          black_args: ". --check"
+          args: ". --check"
 ```
 
 ### Inputs