diff --git a/composer.json b/composer.json
index da7581b..b72a919 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
         "ergebnis/phpstan-rules": "^0.15.3",
         "jangregor/phpstan-prophecy": "^0.8.1",
         "pepakriz/phpstan-exception-rules": "^0.11.6",
-        "phpstan/phpstan-deprecation-rules": "^0.12.0",
+        "phpstan/phpstan-deprecation-rules": "^0.12.6",
         "phpstan/phpstan-php-parser": "^0.12.3",
         "phpstan/phpstan-phpunit": "^0.12.22",
         "phpstan/phpstan-strict-rules": "^0.12.11",
diff --git a/composer.lock b/composer.lock
index 545599b..7567131 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": "6a01d1e88b432d5b9b57d820af8a363e",
+    "content-hash": "b0487e46c5030f2952c04d6a93e247c0",
     "packages": [
         {
             "name": "ergebnis/phpstan-rules",
@@ -331,31 +331,27 @@
         },
         {
             "name": "phpstan/phpstan-deprecation-rules",
-            "version": "0.12.2",
+            "version": "0.12.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan-deprecation-rules.git",
-                "reference": "51d21a83b97e539e1fc56c1ce42ac0f187407fb6"
+                "reference": "46dbd43c2db973d2876d6653e53f5c2cc3a01fbb"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan-deprecation-rules/zipball/51d21a83b97e539e1fc56c1ce42ac0f187407fb6",
-                "reference": "51d21a83b97e539e1fc56c1ce42ac0f187407fb6",
+                "url": "https://api.github.com/repos/phpstan/phpstan-deprecation-rules/zipball/46dbd43c2db973d2876d6653e53f5c2cc3a01fbb",
+                "reference": "46dbd43c2db973d2876d6653e53f5c2cc3a01fbb",
                 "shasum": ""
             },
             "require": {
-                "php": "~7.1",
-                "phpstan/phpstan": "^0.12"
+                "php": "^7.1 || ^8.0",
+                "phpstan/phpstan": "^0.12.60"
             },
             "require-dev": {
-                "consistence/coding-standard": "^3.0.1",
-                "dealerdirect/phpcodesniffer-composer-installer": "^0.4.4",
-                "jakub-onderka/php-parallel-lint": "^1.0",
-                "localheinz/composer-normalize": "^1.3.0",
-                "phing/phing": "^2.16.0",
+                "phing/phing": "^2.16.3",
+                "php-parallel-lint/php-parallel-lint": "^1.2",
                 "phpstan/phpstan-phpunit": "^0.12",
-                "phpunit/phpunit": "^7.0",
-                "slevomat/coding-standard": "^4.5.2"
+                "phpunit/phpunit": "^7.5.20"
             },
             "type": "phpstan-extension",
             "extra": {
@@ -378,7 +374,11 @@
                 "MIT"
             ],
             "description": "PHPStan rules for detecting usage of deprecated classes, methods, properties, constants and traits.",
-            "time": "2020-01-12T16:25:40+00:00"
+            "support": {
+                "issues": "https://github.com/phpstan/phpstan-deprecation-rules/issues",
+                "source": "https://github.com/phpstan/phpstan-deprecation-rules/tree/0.12.6"
+            },
+            "time": "2020-12-13T10:20:54+00:00"
         },
         {
             "name": "phpstan/phpstan-php-parser",