diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b1599da..24ea01e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [ubuntu-latest]
-        php-versions: ['7.4', '8.0', '8.1', '8.2', '8.3']
+        php-versions: ['7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
 
     runs-on: ${{ matrix.operating-system }}