diff --git a/CHANGELOG.md b/CHANGELOG.md
index 19107cf3c..02d65e9f8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## 11.0.1 under development
 
-- no changes in this release.
+- Enh #275: Make `psr/event-dispatcher` dependency optional (@vjik)
 
 ## 11.0.0 October 02, 2024
 
diff --git a/composer-require-checker.json b/composer-require-checker.json
new file mode 100644
index 000000000..74793614b
--- /dev/null
+++ b/composer-require-checker.json
@@ -0,0 +1,18 @@
+{
+    "symbol-whitelist": [
+        "Psr\\EventDispatcher\\StoppableEventInterface"
+    ],
+    "php-core-extensions": [
+        "Core",
+        "date",
+        "json",
+        "hash",
+        "pcre",
+        "Phar",
+        "Reflection",
+        "SPL",
+        "random",
+        "standard"
+    ],
+    "scan-files": []
+}
diff --git a/composer.json b/composer.json
index ac2e8a147..3cd0c058d 100644
--- a/composer.json
+++ b/composer.json
@@ -28,8 +28,6 @@
     ],
     "require": {
         "php": "^8.1",
-        "psr/event-dispatcher": "1.0.0",
-        "psr/event-dispatcher-implementation": "1.0.0",
         "yiisoft/arrays": "^2.0|^3.0",
         "yiisoft/cache": "^1.0|^2.0|^3.0",
         "yiisoft/files": "^1.0|^2.0",
@@ -58,6 +56,9 @@
             "di-web": "di-web.php"
         }
     },
+    "suggestion": {
+        "psr/event-dispatcher": "Use any PSR-compatible event dispatcher to dispatch `View`/`WebView` events."
+    },
     "autoload": {
         "psr-4": {
             "Yiisoft\\View\\": "src"