diff --git a/Dockerfile b/Dockerfile
index e5dd728d72aad45fdfd553159c2b4e07b18c9352..3f7e9f8b16dc6816c7b066985bfd227395cf5b80 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 ARG BASE_REGISTRY=registry1.dsop.io
 ARG BASE_IMAGE=ironbank/redhat/ubi/ubi8
-ARG BASE_TAG=8.3
+ARG BASE_TAG=8.4
 
 FROM quay.io/jetstack/cert-manager-cainjector:v0.11.0 as base
 
diff --git a/hardening_manifest.yaml b/hardening_manifest.yaml
index e6b96643772cb79170630f4c8cb3c508a2aa9f97..a6137d9c84470e1fdd9a860e1c7a7acba640fb3b 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: