diff --git a/Dockerfile b/Dockerfile
index e6cdb695..c7732f75 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ############# builder
-FROM golang:1.22.5 AS builder
+FROM golang:1.22.6 AS builder
 
 WORKDIR /go/src/github.com/gardener/gardener-extension-shoot-cert-service