diff --git a/simple/testdata/src/example.com/CheckLoopCopy/copy_generics.go.golden b/simple/testdata/src/example.com/CheckLoopCopy/copy_generics.go.golden
index cb0358c53..7251463fa 100644
--- a/simple/testdata/src/example.com/CheckLoopCopy/copy_generics.go.golden
+++ b/simple/testdata/src/example.com/CheckLoopCopy/copy_generics.go.golden
@@ -1,4 +1,4 @@
-//go:build go1.18
+//go:build go1.20
 
 package pkg