diff --git a/tests/apps/zombies-dockerfile-tini/Dockerfile b/tests/apps/zombies-dockerfile-tini/Dockerfile
index ab6d39d35..bada92c16 100644
--- a/tests/apps/zombies-dockerfile-tini/Dockerfile
+++ b/tests/apps/zombies-dockerfile-tini/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.7
+FROM golang:1.21.0
 
 ADD . /go/src/github.com/dokku/apps/web
 WORKDIR /go/src/github.com/dokku/apps/web