diff --git a/Dockerfile b/Dockerfile
index 42c8ac23e9a0f71be535d056248b491cb63ead8b..5489a46d60a67ef4511121d5fb2c725331d53626 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 ARG BASE_REGISTRY=registry1.dsop.io/ironbank/redhat/ubi
 ARG BASE_IMAGE=ubi8
-ARG BASE_TAG=8.3
+ARG BASE_TAG=8.4
 FROM kubebuilder/kube-rbac-proxy:v0.4.0 as base
 FROM ${BASE_REGISTRY}/${BASE_IMAGE}:${BASE_TAG}
 
diff --git a/hardening_manifest.yaml b/hardening_manifest.yaml
index 79f925ddfd2bfa48e1f9a6e9833f12fd0b0791eb..955234e0ebdf99383df99a64a9982b072c7b2955 100644
--- a/hardening_manifest.yaml
+++ b/hardening_manifest.yaml
@@ -12,7 +12,7 @@ tags:
 # Build args passed to Dockerfile ARGs
 args:
   BASE_IMAGE: "redhat/ubi/ubi8"
-  BASE_TAG: "8.3"
+  BASE_TAG: "8.4"
 
 # Docker image labels
 labels:
@@ -34,4 +34,4 @@ maintainers:
 - email: "cvernooy@oteemo.com"
   name: "Chris Vernooy"
   username: "cvernooy"
-  cht_member: true
\ No newline at end of file
+  cht_member: true