diff --git a/buildSrc/src/main/java/org/springframework/boot/build/bom/bomr/github/Issue.java b/buildSrc/src/main/java/org/springframework/boot/build/bom/bomr/github/Issue.java
index 262e1efc07..4eda2647fa 100644
--- a/buildSrc/src/main/java/org/springframework/boot/build/bom/bomr/github/Issue.java
+++ b/buildSrc/src/main/java/org/springframework/boot/build/bom/bomr/github/Issue.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2021 the original author or authors.
+ * Copyright 2012-2023 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/buildSrc/src/test/java/org/springframework/boot/build/bom/bomr/UpgradeApplicatorTests.java b/buildSrc/src/test/java/org/springframework/boot/build/bom/bomr/UpgradeApplicatorTests.java
index 7a426ad85e..21e509a28f 100644
--- a/buildSrc/src/test/java/org/springframework/boot/build/bom/bomr/UpgradeApplicatorTests.java
+++ b/buildSrc/src/test/java/org/springframework/boot/build/bom/bomr/UpgradeApplicatorTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2021 the original author or authors.
+ * Copyright 2012-2023 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-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/features/externalconfig/typesafeconfigurationproperties/enablingannotatedtypes/SomeProperties.java b/spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/features/externalconfig/typesafeconfigurationproperties/enablingannotatedtypes/SomeProperties.java
index 9e8518eb40..2eb93badbe 100644
--- a/spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/features/externalconfig/typesafeconfigurationproperties/enablingannotatedtypes/SomeProperties.java
+++ b/spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/features/externalconfig/typesafeconfigurationproperties/enablingannotatedtypes/SomeProperties.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2021 the original author or authors.
+ * Copyright 2012-2023 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-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/howto/webserver/discoverport/MyWebIntegrationTests.java b/spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/howto/webserver/discoverport/MyWebIntegrationTests.java
index ab4b8de357..0c30453d89 100644
--- a/spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/howto/webserver/discoverport/MyWebIntegrationTests.java
+++ b/spring-boot-project/spring-boot-docs/src/main/java/org/springframework/boot/docs/howto/webserver/discoverport/MyWebIntegrationTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2022 the original author or authors.
+ * Copyright 2012-2023 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-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/context/runner/ApplicationContextRunnerTests.java b/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/context/runner/ApplicationContextRunnerTests.java
index ae3b571d63..462d58b9a5 100644
--- a/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/context/runner/ApplicationContextRunnerTests.java
+++ b/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/context/runner/ApplicationContextRunnerTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2023 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-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/context/runner/ReactiveWebApplicationContextRunnerTests.java b/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/context/runner/ReactiveWebApplicationContextRunnerTests.java
index bbf2b1dede..6d859b7d78 100644
--- a/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/context/runner/ReactiveWebApplicationContextRunnerTests.java
+++ b/spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/context/runner/ReactiveWebApplicationContextRunnerTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2023 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-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/main/java/org/springframework/boot/maven/PropertiesMergingResourceTransformer.java b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/main/java/org/springframework/boot/maven/PropertiesMergingResourceTransformer.java
index 7b6a4185fa..24ff5f980d 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/main/java/org/springframework/boot/maven/PropertiesMergingResourceTransformer.java
+++ b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/main/java/org/springframework/boot/maven/PropertiesMergingResourceTransformer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2023 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.