diff --git a/Dockerfile.ocp b/Dockerfile.ocp
index fb130abc19d..d83de3e0d4f 100644
--- a/Dockerfile.ocp
+++ b/Dockerfile.ocp
@@ -1,4 +1,4 @@
-FROM registry.svc.ci.openshift.org/ocp/builder:rhel-8-golang-openshift-4.6 AS builder
+FROM registry.svc.ci.openshift.org/ocp/builder:rhel-8-golang-1.15-openshift-4.6 AS builder
 WORKDIR /go/src/github.com/prometheus/prometheus
 COPY . .
 # NOTE(spasquie): the 'build' target regenerates the ReactJS code and the Go