diff --git a/build.sh b/build.sh
index b24afaeb..5855f6b3 100755
--- a/build.sh
+++ b/build.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+# Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
 # For licensing, see https://ckeditor.com/legal/ckeditor-oss-license
 
 # Build CKEditor using the default settings (and build.js)
diff --git a/presets/README.md b/presets/README.md
index bff7e295..2a0bc2f4 100644
--- a/presets/README.md
+++ b/presets/README.md
@@ -1,7 +1,7 @@
 CKEditor 4
 ==========
 
-Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
 https://ckeditor.com - See LICENSE.md for license information.
 
 CKEditor 4 is a text editor to be used inside web pages. It's not a replacement
diff --git a/presets/basic-build-config.js b/presets/basic-build-config.js
index 78fcf4a7..4c3e2278 100644
--- a/presets/basic-build-config.js
+++ b/presets/basic-build-config.js
@@ -1,5 +1,5 @@
 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see https://ckeditor.com/legal/ckeditor-oss-license
  */
 
diff --git a/presets/basic-ckeditor-config.js b/presets/basic-ckeditor-config.js
index 635df685..99f2fe3e 100644
--- a/presets/basic-ckeditor-config.js
+++ b/presets/basic-ckeditor-config.js
@@ -1,5 +1,5 @@
 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see https://ckeditor.com/legal/ckeditor-oss-license
  */
 
diff --git a/presets/full-build-config.js b/presets/full-build-config.js
index 3d2d5a02..7d59070c 100644
--- a/presets/full-build-config.js
+++ b/presets/full-build-config.js
@@ -1,5 +1,5 @@
 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see https://ckeditor.com/legal/ckeditor-oss-license
  */
 
diff --git a/presets/full-ckeditor-config.js b/presets/full-ckeditor-config.js
index fed42311..49ef519c 100644
--- a/presets/full-ckeditor-config.js
+++ b/presets/full-ckeditor-config.js
@@ -1,5 +1,5 @@
 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see https://ckeditor.com/legal/ckeditor-oss-license
  */
 
diff --git a/presets/standard-build-config.js b/presets/standard-build-config.js
index 9151f940..f452c179 100644
--- a/presets/standard-build-config.js
+++ b/presets/standard-build-config.js
@@ -1,5 +1,5 @@
 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see https://ckeditor.com/legal/ckeditor-oss-license
  */
 
diff --git a/presets/standard-ckeditor-config.js b/presets/standard-ckeditor-config.js
index 6619e244..c0a6d060 100644
--- a/presets/standard-ckeditor-config.js
+++ b/presets/standard-ckeditor-config.js
@@ -1,5 +1,5 @@
 /**
- * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see https://ckeditor.com/legal/ckeditor-oss-license
  */