diff --git a/core/src/test/java/com/google/errorprone/refaster/testdata/input/OnlyBeforeSimpleReturnTemplateExample.java b/core/src/test/java/com/google/errorprone/refaster/testdata/input/OnlyBeforeSimpleReturnTemplateExample.java
index dd1d984a8e16..303cb00c9fcf 100644
--- a/core/src/test/java/com/google/errorprone/refaster/testdata/input/OnlyBeforeSimpleReturnTemplateExample.java
+++ b/core/src/test/java/com/google/errorprone/refaster/testdata/input/OnlyBeforeSimpleReturnTemplateExample.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2022 The Error Prone Authors.
+ * Copyright 2023 The Error Prone Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/core/src/test/java/com/google/errorprone/refaster/testdata/output/OnlyBeforeSimpleReturnTemplateExample.java b/core/src/test/java/com/google/errorprone/refaster/testdata/output/OnlyBeforeSimpleReturnTemplateExample.java
index 0c2e323c8245..f137caf1e060 100644
--- a/core/src/test/java/com/google/errorprone/refaster/testdata/output/OnlyBeforeSimpleReturnTemplateExample.java
+++ b/core/src/test/java/com/google/errorprone/refaster/testdata/output/OnlyBeforeSimpleReturnTemplateExample.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2022 The Error Prone Authors.
+ * Copyright 2023 The Error Prone Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/core/src/test/java/com/google/errorprone/refaster/testdata/template/OnlyBeforeSimpleReturnTemplate.java b/core/src/test/java/com/google/errorprone/refaster/testdata/template/OnlyBeforeSimpleReturnTemplate.java
index 5bfc9694f044..b30ee04781a6 100644
--- a/core/src/test/java/com/google/errorprone/refaster/testdata/template/OnlyBeforeSimpleReturnTemplate.java
+++ b/core/src/test/java/com/google/errorprone/refaster/testdata/template/OnlyBeforeSimpleReturnTemplate.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2022 The Error Prone Authors.
+ * Copyright 2023 The Error Prone Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.