diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index cc177ce..1766e01 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        php-versions: ["8.2", "8.3"]
+        php-versions: ["8.1", "8.2", "8.3"]
     name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.os }}
     steps:
       - name: Checkout