diff --git a/.github/workflows/phplint.yml b/.github/workflows/phplint.yml
index d147941..3f4dd4a 100644
--- a/.github/workflows/phplint.yml
+++ b/.github/workflows/phplint.yml
@@ -19,7 +19,7 @@ jobs:
 
     strategy:
       matrix:
-        php: ['5.4', '5.6', '7.2', 'latest']
+        php: ['5.4', '5.6', '7.2', 'latest', 'nightly']
 
     name: "PHP Lint: PHP ${{ matrix.php }}"