Same for actions/checkout.
diff --git a/README.md b/README.md
index 6ec97ed..85f70d5 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@
   pre-commit:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - uses: actions/setup-python@v2
     - uses: pre-commit/action@v2.0.0
 ```