diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index f677f8f64..9efafb827 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -14,16 +14,21 @@ jobs:
       fail-fast: false
       matrix:
         php-versions: ['7.3', '7.4', '8.0', '8.1']
+        # Keep testing Drupal 9 untill 6 months after it got unsupported, so
+        # untill May 1st 2024.
         drupal-core: ['9.5.x']
         phpstan: ['0']
         include:
           # Extra runs to also test on latest Drupal 10.
           - php-versions: '8.1'
-            drupal-core: '10.1.x'
+            drupal-core: '10.2.x'
             phpstan: '0'
-          # We only need to run PHPStan once on the latest PHP version.
           - php-versions: '8.2'
-            drupal-core: '10.1.x'
+            drupal-core: '10.2.x'
+            phpstan: '0'
+          # We only need to run PHPStan once on the latest PHP version.
+          - php-versions: '8.3'
+            drupal-core: '10.2.x'
             phpstan: '1'
     steps:
       - name: Checkout Drupal core