diff --git a/.github/sync-repo-settings.yaml b/.github/sync-repo-settings.yaml
index 1fa17b12f..7a538ecaf 100644
--- a/.github/sync-repo-settings.yaml
+++ b/.github/sync-repo-settings.yaml
@@ -10,7 +10,8 @@ branchProtectionRules:
     - 'PHP 8.0 Unit Test'
     - 'PHP 8.1 Unit Test'
     - 'PHP 8.2 Unit Test'
-    - 'PHP 8.2 --prefer-lowest Unit Test'
+    - 'PHP 8.3 Unit Test'
+    - 'PHP 8.3 --prefer-lowest Unit Test'
     - 'PHP Style Check'
     - 'cla/google'
   requiredApprovingReviewCount: 1
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index df9f1565a..614045f13 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -11,12 +11,12 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                php: [ "7.4", "8.0", "8.1", "8.2" ]
+                php: [ "7.4", "8.0", "8.1", "8.2", "8.3" ]
                 composer-flags: [""]
                 include:
                   - php: "7.4"
                     composer-flags: "--prefer-lowest "
-                  - php: "8.2"
+                  - php: "8.3"
                     composer-flags: "--prefer-lowest "
         name: PHP ${{ matrix.php }} ${{ matrix.composer-flags }}Unit Test
         steps:
@@ -42,7 +42,7 @@ jobs:
             - name: Setup PHP
               uses: shivammathur/setup-php@v2
               with:
-                php-version: "7.4"
+                php-version: "8.1"
             - name: Install Dependencies
               uses: nick-invision/retry@v2
               with:
@@ -59,7 +59,7 @@ jobs:
             - name: Install PHP
               uses: shivammathur/setup-php@v2
               with:
-                php-version: '8.0'
+                php-version: '8.1'
             - name: Run Script
               run: |
                 composer install