diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
index f5980e7..190b4da 100644
--- a/.github/workflows/codecov.yml
+++ b/.github/workflows/codecov.yml
@@ -17,6 +17,7 @@ jobs:
         php:
           - "8.1"
           - "8.2"
+          - "8.3"
 
     steps:
       - name: Checkout
diff --git a/.github/workflows/cs-tests.yml b/.github/workflows/cs-tests.yml
index e4032b1..e8bbade 100644
--- a/.github/workflows/cs-tests.yml
+++ b/.github/workflows/cs-tests.yml
@@ -17,6 +17,7 @@ jobs:
         php:
           - "8.1"
           - "8.2"
+          - "8.3"
 
     steps:
       - name: Checkout
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index 134ff5b..6f7452d 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -17,6 +17,7 @@ jobs:
         php:
           - "8.1"
           - "8.2"
+          - "8.3"
 
     steps:
       - name: Checkout
diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index d2ab8e7..7f5f333 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -17,6 +17,7 @@ jobs:
         php:
           - "8.1"
           - "8.2"
+          - "8.3"
 
     steps:
       - name: Checkout
diff --git a/README.md b/README.md
index 0d5229a..5d0c509 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # dot-response-header
 
 ![OSS Lifecycle](https://img.shields.io/osslifecycle/dotkernel/dot-response-header)
-![PHP from Packagist (specify version)](https://img.shields.io/packagist/php-v/dotkernel/dot-response-header/3.2.2)
+![PHP from Packagist (specify version)](https://img.shields.io/packagist/php-v/dotkernel/dot-response-header/3.2.3)
 
 [![GitHub issues](https://img.shields.io/github/issues/dotkernel/dot-response-header)](https://github.com/dotkernel/dot-response-header/issues)
 [![GitHub forks](https://img.shields.io/github/forks/dotkernel/dot-response-header)](https://github.com/dotkernel/dot-response-header/network)
diff --git a/composer.json b/composer.json
index c4d7fd0..5d109d8 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
     "mezzio"
   ],
   "require": {
-    "php": "~8.1.0 || ~8.2.0",
+    "php": "~8.1.0 || ~8.2.0 || ~8.3.0",
     "mezzio/mezzio-router": "^3.16",
     "psr/http-client": "^1.0",
     "psr/http-message": "^1.0 || ^2.0"