diff --git a/spring-webflux/src/main/java/org/springframework/web/reactive/resource/AppCacheManifestTransformer.java b/spring-webflux/src/main/java/org/springframework/web/reactive/resource/AppCacheManifestTransformer.java
index e6d2d56a580..f77eed5346b 100644
--- a/spring-webflux/src/main/java/org/springframework/web/reactive/resource/AppCacheManifestTransformer.java
+++ b/spring-webflux/src/main/java/org/springframework/web/reactive/resource/AppCacheManifestTransformer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2020 the original author or 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/spring-webmvc/src/main/java/org/springframework/web/servlet/resource/AppCacheManifestTransformer.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/resource/AppCacheManifestTransformer.java
index fb3bdd0b30c..eb3253e1328 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/resource/AppCacheManifestTransformer.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/resource/AppCacheManifestTransformer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.