diff --git a/.ci-operator.yaml b/.ci-operator.yaml
index 461415cbc5..e307e5af66 100644
--- a/.ci-operator.yaml
+++ b/.ci-operator.yaml
@@ -1,4 +1,4 @@
 build_root_image:
   name: release
   namespace: openshift
-  tag: rhel-9-release-golang-1.24-openshift-4.20
+  tag: rhel-9-release-golang-1.24-openshift-4.21
diff --git a/Dockerfile b/Dockerfile
index be6d7d1564..35d6fdff97 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
-FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.24-openshift-4.20 AS builder
+FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.24-openshift-4.21 AS builder
 WORKDIR /go/src/github.com/openshift/cluster-network-operator
 COPY . .
 RUN hack/build-go.sh
 
-FROM registry.ci.openshift.org/ocp/4.20:base-rhel9
+FROM registry.ci.openshift.org/ocp/4.21:base-rhel9
 COPY --from=builder  /go/src/github.com/openshift/cluster-network-operator/cluster-network-operator /usr/bin/
 COPY --from=builder  /go/src/github.com/openshift/cluster-network-operator/cluster-network-check-endpoints /usr/bin/
 COPY --from=builder  /go/src/github.com/openshift/cluster-network-operator/cluster-network-check-target /usr/bin/