diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0d1b48f..413a08b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,4 +1,4 @@
-name: GitHub Actions Demo
+name: Test extension
 on: [push]
 env:
   SECP256K1_REMOTE: "https://github.com/bitcoin-core/secp256k1.git"
@@ -8,13 +8,17 @@ env:
 jobs:
   test:
     runs-on: ubuntu-18.04
+    strategy:
+      matrix:
+        operating-system: [ubuntu-latest]
+        php-versions: ['7.2', '7.3', '7.4']
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: 7.4
+          php-version: ${{ matrix.php-versions }}
       - run: cd /tmp && git clone ${SECP256K1_REMOTE} libsecp256k1 && cd libsecp256k1 && git checkout efad3506a8937162e8010f5839fdf3771dfcf516 && ./autogen.sh && ./configure --enable-tests=no --enable-benchmark=no --enable-experimental --enable-module-ecdh --enable-module-recovery --enable-module-schnorrsig --enable-module-extrakeys && make -j$(nproc) && sudo make install
       - run: cd secp256k1 && php -v && phpize && ./configure --with-secp256k1-config --with-module-recovery --with-module-ecdh --with-module-schnorrsig --with-module-extrakeys && make -j$(nproc) && sudo make install
       - run: composer update