diff --git a/.github/workflows/code-quality.yml b/.github/workflows/code-quality.yml
index 46eaef6..0c28d8b 100644
--- a/.github/workflows/code-quality.yml
+++ b/.github/workflows/code-quality.yml
@@ -30,8 +30,21 @@ jobs:
         with:
           php-version: '8.2'
 
+      - name: Get composer cache directory
+        id: composer-cache
+        shell: bash
+        run: |
+          echo "dir=$(composer config cache-files-dir)" >> "$GITHUB_OUTPUT"
+
+      - name: Cache composer cache directory
+        uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: ${{ runner.os }}-composer-
+
       - name: "Validate composer.json and composer.lock"
-        run: "composer validate --strict"
+        run: composer validate --strict
 
       - name: Install dependencies with composer
         run: composer install --prefer-dist
@@ -53,6 +66,19 @@ jobs:
           php-version: '8.2'
           tools: cs2pr
 
+      - name: Get composer cache directory
+        id: composer-cache
+        shell: bash
+        run: |
+          echo "dir=$(composer config cache-files-dir)" >> "$GITHUB_OUTPUT"
+
+      - name: Cache composer cache directory
+        uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: ${{ runner.os }}-composer-
+
       - name: Install dependencies with composer
         run: composer install --prefer-dist
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 31b99a4..33683e4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -28,43 +28,56 @@ jobs:
       HTTPBIN_URI: "http://127.0.0.1:8081"
 
     steps:
-    - name: Checkout code
-      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-
-    - name: Setup PHP
-      uses: shivammathur/setup-php@ec406be512d7077f68eed36e63f4d91bc006edc4 # v2.35.4
-      with:
-        php-version: '8.2'
-        extensions: mbstring
+      - name: Checkout code
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@ec406be512d7077f68eed36e63f4d91bc006edc4 # v2.35.4
+        with:
+          php-version: '8.2'
+          extensions: mbstring
     
-    - name: Setup problem matchers for PHP
-      run: echo "::add-matcher::${{ runner.tool_cache }}/php.json"
+      - name: Setup problem matchers for PHP
+        run: echo "::add-matcher::${{ runner.tool_cache }}/php.json"
+
+      - name: Setup problem matchers for PHPUnit
+        run: echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"
+
+      - name: Get composer cache directory
+        id: composer-cache
+        shell: bash
+        run: |
+          echo "dir=$(composer config cache-files-dir)" >> "$GITHUB_OUTPUT"
 
-    - name: Setup problem matchers for PHPUnit
-      run: echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"
+      - name: Cache composer cache directory
+        uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: ${{ runner.os }}-composer-
 
-    - name: "Validate composer.json and composer.lock"
-      run: "composer validate --strict"
+      - name: "Validate composer.json and composer.lock"
+        run: composer validate --strict
 
-    - name: Install dependencies with composer
-      run: composer install --prefer-dist
+      - name: Install dependencies with composer
+        run: composer install --prefer-dist
 
-    - name: Fetch & setup gotify plugin
-      run: bash .ci/scripts/setup-plugin.sh
+      - name: Fetch & setup gotify plugin
+        run: bash .ci/scripts/setup-plugin.sh
 
-    - name: Start gotify & httpbin docker containers
-      run: docker compose up -d
+      - name: Start gotify & httpbin docker containers
+        run: docker compose up -d
 
-    - name: Test connections to docker containers
-      run: bash .ci/scripts/connections.sh
+      - name: Test connections to docker containers
+        run: bash .ci/scripts/connections.sh
 
-    - name: Run phpunit
-      run: ./vendor/bin/phpunit --coverage-clover=coverage.xml --testsuite=default,plugin-endpoint
+      - name: Run phpunit
+        run: ./vendor/bin/phpunit --coverage-clover=coverage.xml --testsuite=default,plugin-endpoint
 
-    - name: Stop gotify & httpbin docker docker containers
-      run: docker compose down
+      - name: Stop gotify & httpbin docker docker containers
+        run: docker compose down
 
-    - name: Upload coverage reports to Codecov
-      uses: codecov/codecov-action@fdcc8476540edceab3de004e990f80d881c6cc00 # v5.5.0
-      with:
-        token: ${{ secrets.CODECOV_TOKEN }}
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@fdcc8476540edceab3de004e990f80d881c6cc00 # v5.5.0
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}