diff --git a/packaging/ironbank/hardening_manifest.yaml.tmpl b/packaging/ironbank/hardening_manifest.yaml.tmpl
index 820f49837f2..36b6fa256a9 100644
--- a/packaging/ironbank/hardening_manifest.yaml.tmpl
+++ b/packaging/ironbank/hardening_manifest.yaml.tmpl
@@ -13,7 +13,7 @@ tags:
 # Build args passed to Dockerfile ARGs
 args:
   BASE_IMAGE: "redhat/ubi/ubi8"
-  BASE_TAG: "8.6"
+  BASE_TAG: "8.8"
   ELASTIC_STACK: "{{ beat_version }}"
   ELASTIC_PRODUCT: "apm-server"