diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 869045d4..85e6853c 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -15,7 +15,9 @@ repos:
   - id: detect-private-key
     exclude: testdata
   - id: mixed-line-ending
-- repo: .
-  rev: main
+- repo: local
   hooks:
   - id: validate-copyright-year
+    name: Validate copyright year
+    entry: hack/check-copyright-year.sh
+    language: script
diff --git a/hack/check-copyright-year.sh b/hack/check-copyright-year.sh
index 45b0deb1..825b6511 100755
--- a/hack/check-copyright-year.sh
+++ b/hack/check-copyright-year.sh
@@ -1,3 +1,7 @@
+#!/bin/bash
+
+# Copyright 2021 the Pinniped contributors. All Rights Reserved.
+# SPDX-License-Identifier: Apache-2.0
 #
 # Check if copyright statements include the current year
 #
@@ -16,6 +20,6 @@ if [ -n "$missing_copyright_files" ]; then
     echo "$year is missing in the copyright notice of the following files:"
     for f in $missing_copyright_files; do
         echo "    $f"
-    done 
+    done
     exit 1
 fi
diff --git a/internal/controller/supervisorconfig/generator/supervisor_secrets_test.go b/internal/controller/supervisorconfig/generator/supervisor_secrets_test.go
index 622ac6b6..f431ea76 100644
--- a/internal/controller/supervisorconfig/generator/supervisor_secrets_test.go
+++ b/internal/controller/supervisorconfig/generator/supervisor_secrets_test.go
@@ -1,4 +1,4 @@
-// Copyright 2020 the Pinniped contributors. All Rights Reserved.
+// Copyright 2020-2021 the Pinniped contributors. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
 package generator
@@ -25,7 +25,6 @@ import (
 	"go.pinniped.dev/internal/testutil"
 )
 
-// this is a comment
 var (
 	owner = &appsv1.Deployment{
 		ObjectMeta: metav1.ObjectMeta{