diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 82e8e595..f5d3d74e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,13 +17,21 @@ jobs:
             php-version: '8.2'
             ini-values: 'ffi.enable=false'
 
+          - operating-system: 'ubuntu-latest'
+            php-version: '8.3'
+            ini-values: 'ffi.enable=false'
+
+          - operating-system: 'ubuntu-latest'
+            php-version: '8.3'
+            job-description: 'with FFI'
+
           - operating-system: 'windows-latest'
-            php-version: '8.2'
+            php-version: '8.3'
             job-description: 'on Windows'
             ini-values: 'ffi.enable=false'
 
           - operating-system: 'macos-latest'
-            php-version: '8.2'
+            php-version: '8.3'
             job-description: 'on macOS'
             ini-values: 'ffi.enable=false'
 
@@ -44,7 +52,6 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-version }}
-          extensions: fiber-amphp/ext-fiber@master
 
       - name: Get Composer cache directory
         id: composer-cache
@@ -76,6 +83,7 @@ jobs:
 
       - name: Run static analysis
         run: vendor/bin/psalm.phar
+        if: matrix.static-analysis != 'none'
 
       - name: Install composer-require-checker
         run: php -r 'file_put_contents("composer-require-checker.phar", file_get_contents("https://github.com/maglnet/ComposerRequireChecker/releases/download/4.2.0/composer-require-checker.phar"));'