diff --git a/Dockerfile b/Dockerfile
index 467e5b76432d6c19b62aa4ef20a2ca2aa725ef40..83e7f6e25ac380aa6ca12e80d90f41462b423341 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 koalaman/shellcheck:v0.7.2 as source
 
diff --git a/hardening_manifest.yaml b/hardening_manifest.yaml
index 0dcb10873f05205f8173fee56b8432dd8a56c89d..919669f9e3772551afc6bd19e19304f32d5e0b2a 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: