diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 478dbf98..baf84ef6 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    sha: v1.2.1
+    sha: v1.2.1-1
     hooks:
     -   id: trailing-whitespace
     -   id: end-of-file-fixer
diff --git a/README.md b/README.md
index f9d8a59b..f1c42afe 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ See also: https://github.com/pre-commit/pre-commit
 Add this to your `.pre-commit-config.yaml`
 
     -   repo: git://github.com/pre-commit/pre-commit-hooks
-        sha: v1.2.1  # Use the ref you want to point at
+        sha: v1.2.1-1  # Use the ref you want to point at
         hooks:
         -   id: trailing-whitespace
         # -   id: ...