diff --git a/hack/tools/controller-gen/go.mod b/hack/tools/controller-gen/go.mod
index 3355d248..f6e46d13 100644
--- a/hack/tools/controller-gen/go.mod
+++ b/hack/tools/controller-gen/go.mod
@@ -2,7 +2,7 @@ module github.com/giantswarm/apiextensions/hack/tools/code-generator
 
 go 1.22.0
 
-toolchain go1.23.3
+toolchain go1.23.4
 
 require sigs.k8s.io/controller-tools v0.15.0