diff --git a/.ci-operator.yaml b/.ci-operator.yaml
index e2fbe8182..a83f0f843 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-1.20-openshift-4.16
+  tag: rhel-9-release-golang-1.21-openshift-4.16
diff --git a/Dockerfile.openshift.rhel7 b/Dockerfile.openshift.rhel7
index 1c38bc3a7..141506a0a 100644
--- a/Dockerfile.openshift.rhel7
+++ b/Dockerfile.openshift.rhel7
@@ -1,4 +1,4 @@
-FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.20-openshift-4.16 AS builder
+FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.21-openshift-4.16 AS builder
 WORKDIR /go/src/github.com/kubernetes-csi/external-attacher
 COPY . .
 RUN make build