diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 9fd8db5..89134b8 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -119,9 +119,19 @@ jobs:
     needs:
       - check-dependencies
       - xml-linting
+    strategy:
+      matrix:
+        php-version:
+          - 7.3
+          - 7.4
     steps:
       - uses: actions/checkout@v2
 
+      - name: Install PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: "${{ matrix.php-version }}"
+
       - name: Get Composer Cache Directory
         id: composer-cache
         run: |
@@ -145,9 +155,19 @@ jobs:
     needs:
       - check-dependencies
       - xml-linting
+    strategy:
+      matrix:
+        php-version:
+          - 7.3
+          - 7.4
     steps:
       - uses: actions/checkout@v2
 
+      - name: Install PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: "${{ matrix.php-version }}"
+
       - name: Get Composer Cache Directory
         id: composer-cache
         run: |