diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index fcfaba9c..7d27dc07 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -4,20 +4,24 @@ on:  # yamllint disable-line rule:truthy
   pull_request:
     paths:
       - 'src/**'
-      - 'tests/**'
       - 'bin/trap'
       - '.php-cs-fixer.dist.php'
+      - 'psalm*'
+      - 'phpstan*'
+      - 'composer.*'
   push:
     paths:
       - 'src/**'
-      - 'tests/**'
       - 'bin/trap'
       - '.php-cs-fixer.dist.php'
+      - 'psalm*'
+      - 'phpstan*'
+      - 'composer.*'
 
 name: 🔍 Static analysis
 
 jobs:
-  static-analysis:
+  psalm:
     timeout-minutes: 4
     runs-on: ${{ matrix.os }}
     concurrency:
@@ -68,5 +72,53 @@ jobs:
       - name: 🔍 Run static analysis using vimeo/psalm
         run: composer psalm:ci
 
+  phpstan:
+    timeout-minutes: 4
+    runs-on: ${{ matrix.os }}
+    concurrency:
+      cancel-in-progress: true
+      group: static-analysis-${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+    strategy:
+      fail-fast: true
+      matrix:
+        os:
+          - ubuntu-latest
+        php-version:
+          - '8.2'
+        dependencies:
+          - locked
+    steps:
+      - name: 📦 Check out the codebase
+        uses: actions/checkout@v4.1.5
+
+      - name: 🛠️ Setup PHP
+        uses: shivammathur/setup-php@2.30.4
+        with:
+          php-version: ${{ matrix.php-version }}
+          extensions: none, ctype, curl, dom, json, mbstring, phar, simplexml, tokenizer, xml, xmlwriter, sockets, opcache, pcntl, posix
+          ini-values: error_reporting=E_ALL
+          coverage: none
+
+      - name: 🛠️ Setup problem matchers
+        run: echo "::add-matcher::${{ runner.tool_cache }}/php.json"
+
+      - name: 🤖 Validate composer.json and composer.lock
+        run: composer validate --ansi --strict
+
+      - name: 🔍 Get composer cache directory
+        uses: wayofdev/gh-actions/actions/composer/get-cache-directory@v3.1.0
+
+      - name: ♻️ Restore cached dependencies installed with composer
+        uses: actions/cache@v4.0.2
+        with:
+          path: ${{ env.COMPOSER_CACHE_DIR }}
+          key: php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('composer.lock') }}
+          restore-keys: php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-
+
+      - name: 📥 Install "${{ matrix.dependencies }}" dependencies
+        uses: wayofdev/gh-actions/actions/composer/install@v3.1.0
+        with:
+          dependencies: ${{ matrix.dependencies }}
+
       - name: 🔍 Run static analysis using phpstan/phpstan
         run: composer stan:ci