diff --git a/ci/openshift-ci/images/Dockerfile.buildroot b/ci/openshift-ci/images/Dockerfile.buildroot
index 47ebbb956f..712c39ad9f 100644
--- a/ci/openshift-ci/images/Dockerfile.buildroot
+++ b/ci/openshift-ci/images/Dockerfile.buildroot
@@ -6,4 +6,9 @@
 #
 FROM registry.centos.org/centos:8
 
-RUN yum -y update && yum -y install git sudo wget
+RUN yum -y update && \
+    yum -y install \
+    git \
+    sudo \
+    wget && \
+    yum clean all