diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 670f38464..1a5ffbfba 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -59,6 +59,8 @@ jobs:
             typo3: "^11.5"
           - php: "8.2"
             typo3: "^12.1"
+          - php: "8.3"
+            typo3: "^12.1"
 
     runs-on: ubuntu-latest
 
@@ -101,6 +103,8 @@ jobs:
             typo3: "^11.5"
           - php: "8.2"
             typo3: "^12.1"
+          - php: "8.3"
+            typo3: "^12.1"
 
     runs-on: ubuntu-latest