diff --git a/openshift/ci-operator/build-image/Dockerfile b/openshift/ci-operator/build-image/Dockerfile
index 54684da50..339c52d74 100755
--- a/openshift/ci-operator/build-image/Dockerfile
+++ b/openshift/ci-operator/build-image/Dockerfile
@@ -3,7 +3,7 @@
 FROM registry.ci.openshift.org/ocp/4.19:cli-artifacts as tools
 
 # Dockerfile to bootstrap build and test in openshift-ci
-FROM registry.ci.openshift.org/openshift/release:rhel-9-release-golang-1.25-openshift-4.21 as builder
+FROM registry.ci.openshift.org/openshift/release:rhel-9-release-golang-1.25-openshift-4.20 as builder
 
 ARG TARGETARCH
 
diff --git a/openshift/ci-operator/images/kn-event-sender/Dockerfile b/openshift/ci-operator/images/kn-event-sender/Dockerfile
index 742bba105..4a5e48ffe 100755
--- a/openshift/ci-operator/images/kn-event-sender/Dockerfile
+++ b/openshift/ci-operator/images/kn-event-sender/Dockerfile
@@ -1,5 +1,5 @@
 # DO NOT EDIT! Generated Dockerfile for cmd/kn-event-sender.
-ARG GO_BUILDER=registry.ci.openshift.org/openshift/release:rhel-9-release-golang-1.25-openshift-4.21
+ARG GO_BUILDER=registry.ci.openshift.org/openshift/release:rhel-9-release-golang-1.25-openshift-4.20
 ARG GO_RUNTIME=registry.access.redhat.com/ubi9/ubi-minimal
 
 FROM $GO_BUILDER as builder
@@ -9,6 +9,7 @@ COPY . .
 
 ENV CGO_ENABLED=1
 ENV GOEXPERIMENT=strictfipsruntime
+ENV GOFLAGS='-mod=mod'
 ENV GOFLAGS=''
 
 RUN go build -tags strictfipsruntime -o /usr/bin/main ./cmd/kn-event-sender
@@ -34,6 +35,6 @@ LABEL \
       io.openshift.tags="kn-event-sender" \
       vendor="Red Hat, Inc." \
       release=$VERSION \
-      cpe="cpe:/a:redhat:openshift_serverless:1.38::el9"
+      cpe="cpe:/a:redhat:openshift_serverless:1.41::el9"
 
 ENTRYPOINT ["/usr/bin/kn-event-sender"]
diff --git a/openshift/ci-operator/images/kn-event/Dockerfile b/openshift/ci-operator/images/kn-event/Dockerfile
index 3c0df3057..69aeed986 100755
--- a/openshift/ci-operator/images/kn-event/Dockerfile
+++ b/openshift/ci-operator/images/kn-event/Dockerfile
@@ -1,5 +1,5 @@
 # DO NOT EDIT! Generated Dockerfile for cmd/kn-event.
-ARG GO_BUILDER=registry.ci.openshift.org/openshift/release:rhel-9-release-golang-1.25-openshift-4.21
+ARG GO_BUILDER=registry.ci.openshift.org/openshift/release:rhel-9-release-golang-1.25-openshift-4.20
 ARG GO_RUNTIME=registry.access.redhat.com/ubi9/ubi-minimal
 
 FROM $GO_BUILDER as builder
@@ -9,6 +9,7 @@ COPY . .
 
 ENV CGO_ENABLED=1
 ENV GOEXPERIMENT=strictfipsruntime
+ENV GOFLAGS='-mod=mod'
 ENV GOFLAGS=''
 
 RUN go build -tags strictfipsruntime -o /usr/bin/main ./cmd/kn-event
@@ -34,6 +35,6 @@ LABEL \
       io.openshift.tags="kn-event" \
       vendor="Red Hat, Inc." \
       release=$VERSION \
-      cpe="cpe:/a:redhat:openshift_serverless:1.38::el9"
+      cpe="cpe:/a:redhat:openshift_serverless:1.41::el9"
 
 ENTRYPOINT ["/usr/bin/kn-event"]