diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7b4a76d..450cd22 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        version: ['7.0', '7.4', '8.0', '8.2']
+        version: ['7.0', '7.4', '8.0', '8.3']
       max-parallel: 2
 
     steps:
@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        version: ['7.0', '7.4', '8.0', '8.2']
+        version: ['7.0', '7.4', '8.0', '8.3']
       max-parallel: 1
 
     steps:
@@ -52,7 +52,7 @@ jobs:
       uses: shivammathur/setup-php@v2
       with:
         php-version: ${{ matrix.version }}
-        coverage: xdebug2
+        coverage: ${{ startsWith(matrix.version, '7.') && 'xdebug2' || 'xdebug3' }}
       env:
         COMPOSER_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
diff --git a/README.md b/README.md
index 4497f7a..4ded891 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ A software development kit to provide ways to interact with CM.com's Text servic
 
 ### Requirements
 
-- php 7.* or 8.0 or 8.1 or 8.2
+- php 7.* or 8.0 or 8.1 or 8.2 or 8.3
 
 
 ## Usage