diff --git a/composer.lock b/composer.lock
index fcf3324e..b34a8529 100644
--- a/composer.lock
+++ b/composer.lock
@@ -8,16 +8,16 @@
     "packages": [
         {
             "name": "ckeditor/ckeditor",
-            "version": "4.20.2",
+            "version": "4.21.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/ckeditor/ckeditor4-releases.git",
-                "reference": "8cc8f1b065f93d90c305c2609fec4e4215dd20ba"
+                "reference": "af71d07caa2172c53e0e426250e3b0189137915b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/ckeditor/ckeditor4-releases/zipball/8cc8f1b065f93d90c305c2609fec4e4215dd20ba",
-                "reference": "8cc8f1b065f93d90c305c2609fec4e4215dd20ba",
+                "url": "https://api.github.com/repos/ckeditor/ckeditor4-releases/zipball/af71d07caa2172c53e0e426250e3b0189137915b",
+                "reference": "af71d07caa2172c53e0e426250e3b0189137915b",
                 "shasum": ""
             },
             "type": "library",
@@ -52,7 +52,7 @@
                 "source": "https://github.com/ckeditor/ckeditor4",
                 "wiki": "https://ckeditor.com/docs/ckeditor4/latest/"
             },
-            "time": "2023-02-15T12:55:37+00:00"
+            "time": "2023-03-22T10:37:38+00:00"
         },
         {
             "name": "phpmailer/phpmailer",