diff --git a/Dockerfile b/Dockerfile
index fc7b0c3..976af45 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM nxtlvlsoftware/pmmp-phpstan:3
+FROM nxtlvlsoftware/pmmp-phpstan:3.11.3
 
 USER root