diff --git a/CHANGELOG.md b/CHANGELOG.md
index 030a1f9..b92166b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [1.2.1] - 2018-03-07
+
+### Changed
+
+- Update squizlabs/php_codesniffer in / from 3.2.2 to 3.2.3
+
 ## [1.2] - 2018-01-16
 
 ### Changed
diff --git a/composer.json b/composer.json
index dc64321..d5a016e 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
     "name": "php7compatibility",
     "description": "PHP 7.x compatibility checker",
     "require-dev": {
-        "squizlabs/php_codesniffer": "^2.2 || ^3.0.2",
+        "squizlabs/php_codesniffer": "3.2.3",
         "wimg/php-compatibility": "8.1.0"
     },
     "prefer-stable" : true,
diff --git a/composer.lock b/composer.lock
index 2aac892..17af739 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,21 +4,21 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "879335d89aa68ad69080c1800f3dd980",
+    "content-hash": "29f396b71b29904dac7fa92175931516",
     "packages": [],
     "packages-dev": [
         {
             "name": "squizlabs/php_codesniffer",
-            "version": "3.2.2",
+            "version": "3.2.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
-                "reference": "d7c00c3000ac0ce79c96fcbfef86b49a71158cd1"
+                "reference": "4842476c434e375f9d3182ff7b89059583aa8b27"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/d7c00c3000ac0ce79c96fcbfef86b49a71158cd1",
-                "reference": "d7c00c3000ac0ce79c96fcbfef86b49a71158cd1",
+                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/4842476c434e375f9d3182ff7b89059583aa8b27",
+                "reference": "4842476c434e375f9d3182ff7b89059583aa8b27",
                 "shasum": ""
             },
             "require": {
@@ -28,7 +28,7 @@
                 "php": ">=5.4.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.0 || ^5.0 || ^6.0"
+                "phpunit/phpunit": "^4.0 || ^5.0 || ^6.0 || ^7.0"
             },
             "bin": [
                 "bin/phpcs",
@@ -56,7 +56,7 @@
                 "phpcs",
                 "standards"
             ],
-            "time": "2017-12-19T21:44:46+00:00"
+            "time": "2018-02-20T21:35:23+00:00"
         },
         {
             "name": "wimg/php-compatibility",