diff --git a/Dockerfile b/Dockerfile
index 6688e573a8929582dc208b0b661fe226e0a95221..e71663ab5fbf0ee8896d1d07d6e9906ade092607 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,14 +1,11 @@
-###############################################################
-# Default registry variables
-ARG BASE_REGISTRY=nexus-docker-secure.levelup-dev.io
-ARG BASE_IMAGE=redhat/ubi/ubi8
-ARG BASE_TAG=8.2
+ARG BASE_REGISTRY=registry1.dso.mil
+ARG BASE_IMAGE=ironbank/redhat/ubi/ubi8
+ARG BASE_TAG=8.4
 
 FROM istio/mixer:1.5.10 AS base
 
 FROM ${BASE_REGISTRY}/${BASE_IMAGE}:${BASE_TAG}
 
-
 COPY --from=base /usr/local/bin/mixs /usr/local/bin/mixs
 
 RUN dnf update -y && \
diff --git a/hardening_manifest.yaml b/hardening_manifest.yaml
index 7e90f2eff88d2d4c09ffc822999133d261271e0e..2f9632825ae79526c4d4bae7cc50787d6a3a82aa 100644
--- a/hardening_manifest.yaml
+++ b/hardening_manifest.yaml
@@ -14,7 +14,7 @@ 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: