diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9773825..c70ae3a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,10 +7,11 @@ on:
 jobs:
   PHPUnit:
     name: PHPUnit (PHP ${{ matrix.php }} ${{ matrix.dependencies }})
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
         php:
+          - 8.3
           - 8.2
           - 8.1
           - 8.0
@@ -18,7 +19,7 @@ jobs:
           - highest
           - lowest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
       - uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php }}
@@ -33,16 +34,16 @@ jobs:
 
   Psalm:
     name: Psalm (PHP ${{ matrix.php }})
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
         php:
           - 8.2
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
       - uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php }}
 
       - run: composer update --dev
-      - run: vendor/bin/psalm
\ No newline at end of file
+      - run: vendor/bin/psalm