diff --git a/php/config.yaml b/php/config.yaml
index 581b75bd177..13f36f36ab5 100644
--- a/php/config.yaml
+++ b/php/config.yaml
@@ -34,7 +34,7 @@ language:
       command: ./rr serve
     swoole:
       extensions:
-        - swoole/5.1.4
+        - swoole/5.1.5
       command: php public/index.php
       build_deps:
         - libbrotli-dev