diff --git a/Dockerfile b/Dockerfile
index 9de26823699654753c73d87b319cd9aaa742ee61..7de07888873e10c4daa722dea6e00e53cd86338f 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 kiali/kiali:v0.16.2 as base
 
diff --git a/hardening_manifest.yaml b/hardening_manifest.yaml
index 5c8c0c35c7e45abdaabfa5e4a5841f557684fce0..fe420c33b0ad28ddad8279051e0680025924bf14 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: