diff --git a/Dockerfile b/Dockerfile
index 1471259d5423b142a4d16528b4531a6d6c2ce225..63938bf151a6b278500cd4e53ee7279f4ea41cd3 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 spark-operator/spark-operator:v1beta2-1.0.0-2.4.4 AS base
 FROM ${BASE_REGISTRY}/${BASE_IMAGE}:${BASE_TAG}
 RUN dnf install -y openssl curl
diff --git a/hardening_manifest.yaml b/hardening_manifest.yaml
index 2f4022275f027be91b14be1a0c183c70add631ca..a4d306f1fce2ce4ba8b26817bf70755f9c1c9a98 100644
--- a/hardening_manifest.yaml
+++ b/hardening_manifest.yaml
@@ -11,7 +11,7 @@ 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: