diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index d12dad1..9715f93 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -11,7 +11,7 @@ jobs:
         runs-on: ${{ matrix.os }}
         strategy:
             matrix:
-                php: [7.4, 7.3, 7.2]
+                php: [8.0, 7.4, 7.3, 7.2]
                 dependency-version: [prefer-lowest, prefer-stable]
                 os: [ubuntu-latest, windows-latest]