diff --git a/CHANGELOG.md b/CHANGELOG.md
index 18493ca..01f41d0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog][keepachangelog] and this project adheres to [Semantic Versioning][semver].
 
+## Unreleased
+
+### Changed
+
+- Minimal `avtocod/specs` version now is `4.0`
+
 ## v1.9.0
 
 ### Added
diff --git a/composer.json b/composer.json
index c91852d..4ef6dc6 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
         "php": "^8.0.2",
         "ext-json": "*",
         "ext-mbstring": "*",
-        "avtocod/specs": "~3.70",
+        "avtocod/specs": "~4.0",
         "illuminate/support": "~9.0 || ~10.0 || ~11.0"
     },
     "require-dev": {