diff --git a/builder/Dockerfile.k8s b/builder/Dockerfile.k8s
index cafe97f03503..4dee640d9b2c 100644
--- a/builder/Dockerfile.k8s
+++ b/builder/Dockerfile.k8s
@@ -1,4 +1,4 @@
-FROM golang:1.23.4
+FROM golang:1.23.5
 
 RUN go install sigs.k8s.io/controller-tools/cmd/controller-gen@v0.17.0
 
diff --git a/builder/Dockerfile.protoc b/builder/Dockerfile.protoc
index 1ca895d2bdb2..5efab73d7970 100644
--- a/builder/Dockerfile.protoc
+++ b/builder/Dockerfile.protoc
@@ -1,4 +1,4 @@
-FROM golang:1.23.4
+FROM golang:1.23.5
 
 ARG PROTOC_VERSION="29.0" # v5.29.0
 ARG PROTOC_ZIP="protoc-${PROTOC_VERSION}-linux-x86_64.zip"