diff --git a/Dockerfile b/Dockerfile
index b1d1ef4ffeeea88d614b4630d65154475d8f3441..58114ef70e138ccbd51e3cdbca1ed5c13f925791 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 ARG BASE_REGISTRY=registry1.dso.mil
 ARG BASE_IMAGE=ironbank/redhat/ubi/ubi8
-ARG BASE_TAG=8.3
+ARG BASE_TAG=8.4
 
 FROM ${BASE_REGISTRY}/${BASE_IMAGE}:${BASE_TAG}
 
diff --git a/hardening_manifest.yaml b/hardening_manifest.yaml
index aa61d043b970250d2e05f923071a731093825a99..6707bff679d576087b96a94436c8b216b221c805 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: