diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dd09498..5e61472 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [ ubuntu-latest ]
-        php-versions: [ '8.1', '8.2', '8.3', '8.4', '8.5' ]
+        php-versions: [ '8.1', '8.2', '8.3', '8.4', '8.5', '8.6' ]
         psr-http-versions: [ '^1.1', '^2' ]
 
     runs-on: ${{ matrix.operating-system }}