diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index db31420..61afb2b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -12,9 +12,9 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-versions: ['5.3', '5.4', '5.5', '5.6', '7.2', '7.3', '7.4', '8']
+        php-versions: ['5.3', '5.4', '5.5', '5.6', '7.2', '7.3', '7.4', '8.0']
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Setup PHP ${{ matrix.php-versions }}
         uses: shivammathur/setup-php@v2
@@ -26,7 +26,7 @@ jobs:
 
       - name: Cache Composer packages
         id: composer-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: vendor
           key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
diff --git a/LICENSE b/LICENSE
index 16a7973..a1c900c 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018 - 2022 Fabian Meyer
+Copyright (c) 2018 - 2023 Fabian Meyer
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index b534be2..b8e5bd5 100644
--- a/README.md
+++ b/README.md
@@ -25,10 +25,11 @@ composer require --dev meyfa/phpunit-assert-gd
 **Compatibility table**
 
 | AssertGD version | Supported PHP version | Supported PHPUnit version |
-| :--------------- | :-------------------- | :------------------------ |
+| :--------------- |:----------------------|:--------------------------|
+| 4.*              | >= 8.1                | 10.1                      |
 | 3.*              | >= 7.3                | 9                         |
 | 2.*              | >= 7.2                | 8                         |
-| 1.*              | >= 5.3.3              | 4.8.36 - 6.5.0            |
+| 1.*              | 5.3.3 - 8.0           | 4.8.36 - 6.5.0            |
 
 ## Examples