diff --git a/CHANGELOG.md b/CHANGELOG.md
index 95e8b26..a5c70e6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 - Enh #276: Add `make open` and improve `make up` UX (@samdark)
 - Enh #277: Update `yiisoft/data` requirement from `^1.0.1` to `^2.0.0` (@vjik)
+- Enh #279: Update Composer development dependencies (@vjik)
 
 ## 1.4.0 April 12, 2026
 
diff --git a/composer.json b/composer.json
index 59823ec..c38bdc2 100644
--- a/composer.json
+++ b/composer.json
@@ -63,21 +63,21 @@
         "yiisoft/yii-runner-http": "^3.2.1"
     },
     "require-dev": {
-        "vlucas/phpdotenv": "^5.6",
+        "vlucas/phpdotenv": "^5.6.3",
         "codeception/c3": "^2.9",
         "codeception/codeception": "^5.3.5",
         "codeception/lib-innerbrowser": "^4.1.0",
         "codeception/module-asserts": "^3.3.0",
         "codeception/module-cli": "^2.0.1",
         "codeception/module-db": "^3.2.2",
-        "codeception/module-phpbrowser": "^3.0.2",
+        "codeception/module-phpbrowser": "^4.0.0",
         "codeception/module-rest": "^3.4.3",
-        "friendsofphp/php-cs-fixer": "^3.94.2",
+        "friendsofphp/php-cs-fixer": "^3.95.1",
         "phpunit/phpunit": "^11.5.55",
-        "rector/rector": "^2.3.8",
+        "rector/rector": "^2.4.2",
         "roave/infection-static-analysis-plugin": "^1.40",
         "shipmonk/composer-dependency-analyser": "^1.8.4",
-        "vimeo/psalm": "^6.15.1"
+        "vimeo/psalm": "^6.16.1"
     },
     "autoload": {
         "psr-4": {