diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index a9327a7..53a38da 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -32,6 +32,7 @@ jobs:
           - 7.3
           - 7.4
           - 8.0
+          - 8.1
     steps:
       - name: Checkout
         uses: actions/checkout@v2
@@ -58,6 +59,8 @@ jobs:
             typo3-version: '^11.5'
           - php-version: '8.0'
             typo3-version: '^11.5'
+          - php-version: '8.1'
+            typo3-version: '^11.5'
     steps:
       - uses: actions/checkout@v2
 
@@ -143,6 +146,8 @@ jobs:
             typo3-version: '^11.5'
           - php-version: '8.0'
             typo3-version: '^11.5'
+          - php-version: '8.1'
+            typo3-version: '^11.5'
     steps:
       - uses: actions/checkout@v2
 
@@ -190,6 +195,9 @@ jobs:
           - db-version: '8'
             php-version: '8.0'
             typo3-version: '^11.5'
+          - db-version: '8'
+            php-version: '8.1'
+            typo3-version: '^11.5'
     steps:
       - uses: actions/checkout@v2
 
@@ -236,6 +244,8 @@ jobs:
             typo3-version: '^11.5'
           - php-version: '8.0'
             typo3-version: '^11.5'
+          - php-version: '8.1'
+            typo3-version: '^11.5'
     steps:
       - uses: actions/checkout@v2
 
diff --git a/Documentation/Changelog/1.4.0.rst b/Documentation/Changelog/1.4.0.rst
index 90e2dd3..1f6b821 100644
--- a/Documentation/Changelog/1.4.0.rst
+++ b/Documentation/Changelog/1.4.0.rst
@@ -9,7 +9,7 @@ Nothing
 Features
 --------
 
-Nothing
+* Support PHP 8.1
 
 Fixes
 -----
diff --git a/composer.json b/composer.json
index 354a668..f083a0e 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
     "require": {
         "doctrine/dbal": "^2.12",
         "ext-mbstring": "*",
-        "php": "~7.3.0 || ~7.4.0 || ~8.0.0",
+        "php": "~7.3.0 || ~7.4.0 || ~8.0.0 || ~8.1.0",
         "psr/http-message": "^1.0",
         "psr/http-server-handler": "^1.0",
         "psr/http-server-middleware": "^1.0",