diff --git a/Dockerfile b/Dockerfile
index f7f0155..f7c6d00 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/golang:1.20.7 as driver-builder
+FROM docker.io/library/golang:1.21.0 as driver-builder
 
 # renovate: datasource=git-tags depName=https://github.com/JonasProgrammer/docker-machine-driver-hetzner.git
 ARG HETZNER_VERSION=5.0.0