diff --git a/.ci-operator.yaml b/.ci-operator.yaml
index 7cd14bfef..7096df34e 100644
--- a/.ci-operator.yaml
+++ b/.ci-operator.yaml
@@ -1,4 +1,4 @@
 build_root_image:
   name: release
   namespace: openshift
-  tag: rhel-8-release-golang-1.20-openshift-4.15
+  tag: rhel-9-release-golang-1.20-openshift-4.15
diff --git a/Dockerfile.rhel b/Dockerfile.rhel
index 6a605e0cd..8ffa98062 100644
--- a/Dockerfile.rhel
+++ b/Dockerfile.rhel
@@ -1,9 +1,9 @@
-FROM registry.ci.openshift.org/ocp/builder:rhel-8-golang-1.20-openshift-4.15 AS builder
+FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.20-openshift-4.15 AS builder
 WORKDIR /go/src/github.com/openshift/cluster-machine-approver
 COPY . .
 RUN make build
 
-FROM registry.ci.openshift.org/ocp/4.15:base
+FROM registry.ci.openshift.org/ocp/4.15:base-rhel9
 COPY --from=builder /go/src/github.com/openshift/cluster-machine-approver/machine-approver /usr/bin/
 COPY manifests /manifests
 ENTRYPOINT ["/usr/bin/machine-approver"]