diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 4d1f66d7..4cb2d09c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -273,6 +273,7 @@ jobs:
       matrix:
         include:
           # Each supported PHP version once. That's enough.
+          - php: '8.3'
           - php: '8.2'
           - php: '8.1'
           - php: '8.0'