diff --git a/composer.json b/composer.json
index 0beaf30..7d02c3d 100644
--- a/composer.json
+++ b/composer.json
@@ -34,6 +34,6 @@
 
     "require-dev": {
         "phpunit/phpunit": "^9.5",
-        "squizlabs/php_codesniffer": "^3.5"
+        "squizlabs/php_codesniffer": "^3.6"
     }
 }
diff --git a/composer.lock b/composer.lock
index 2cfdecc..a7755ee 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "ccbe913b915aa41768173ab7ba2fd287",
+    "content-hash": "58ba14cb9834e1682d8cb01d908d03b0",
     "packages": [],
     "packages-dev": [
         {
@@ -1913,16 +1913,16 @@
         },
         {
             "name": "squizlabs/php_codesniffer",
-            "version": "3.5.8",
+            "version": "3.6.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
-                "reference": "9d583721a7157ee997f235f327de038e7ea6dac4"
+                "reference": "ffced0d2c8fa8e6cdc4d695a743271fab6c38625"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/9d583721a7157ee997f235f327de038e7ea6dac4",
-                "reference": "9d583721a7157ee997f235f327de038e7ea6dac4",
+                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/ffced0d2c8fa8e6cdc4d695a743271fab6c38625",
+                "reference": "ffced0d2c8fa8e6cdc4d695a743271fab6c38625",
                 "shasum": ""
             },
             "require": {
@@ -1965,7 +1965,7 @@
                 "source": "https://github.com/squizlabs/PHP_CodeSniffer",
                 "wiki": "https://github.com/squizlabs/PHP_CodeSniffer/wiki"
             },
-            "time": "2020-10-23T02:01:07+00:00"
+            "time": "2021-04-09T00:54:41+00:00"
         },
         {
             "name": "symfony/polyfill-ctype",