diff --git a/charts/istio/1.26.7+tetrate0/gateways/istio-egress/values.yaml b/charts/istio/1.26.7+tetrate0/gateways/istio-egress/values.yaml
index 4aec1db8..4ffe1f6d 100644
--- a/charts/istio/1.26.7+tetrate0/gateways/istio-egress/values.yaml
+++ b/charts/istio/1.26.7+tetrate0/gateways/istio-egress/values.yaml
@@ -150,7 +150,7 @@ _internal_defaults_do_not_set:
     hub: containers.istio.tetratelabs.com
 
     # Default tag for Istio images.
-    tag: 1.26.7-tetrate0
+    tag: 1.26.7-tetrate0-tlsnist-preview
 
     # Specify image pull policy if default behavior isn't desired.
     # Default behavior: latest images will be Always else IfNotPresent.
diff --git a/charts/istio/1.26.7+tetrate0/gateways/istio-ingress/values.yaml b/charts/istio/1.26.7+tetrate0/gateways/istio-ingress/values.yaml
index da1e2740..1b6e483b 100644
--- a/charts/istio/1.26.7+tetrate0/gateways/istio-ingress/values.yaml
+++ b/charts/istio/1.26.7+tetrate0/gateways/istio-ingress/values.yaml
@@ -162,7 +162,7 @@ _internal_defaults_do_not_set:
     hub: containers.istio.tetratelabs.com
 
     # Default tag for Istio images.
-    tag: 1.26.7-tetrate0
+    tag: 1.26.7-tetrate0-tlsnist-preview
 
     # Variant of the image to use.
     # Currently supported are: [debug, distroless]
diff --git a/charts/istio/1.26.7+tetrate0/istio-cni/values.yaml b/charts/istio/1.26.7+tetrate0/istio-cni/values.yaml
index ace8498f..0d5f0489 100644
--- a/charts/istio/1.26.7+tetrate0/istio-cni/values.yaml
+++ b/charts/istio/1.26.7+tetrate0/istio-cni/values.yaml
@@ -118,7 +118,7 @@ _internal_defaults_do_not_set:
     hub: containers.istio.tetratelabs.com
 
     # Default tag for Istio images.
-    tag: 1.26.7-tetrate0
+    tag: 1.26.7-tetrate0-tlsnist-preview
 
     # Variant of the image to use.
     # Currently supported are: [debug, distroless]
diff --git a/charts/istio/1.26.7+tetrate0/istio-control/istio-discovery/values.yaml b/charts/istio/1.26.7+tetrate0/istio-control/istio-discovery/values.yaml
index 8a135314..cd7379d5 100644
--- a/charts/istio/1.26.7+tetrate0/istio-control/istio-discovery/values.yaml
+++ b/charts/istio/1.26.7+tetrate0/istio-control/istio-discovery/values.yaml
@@ -246,7 +246,7 @@ _internal_defaults_do_not_set:
     # Dev builds from prow are on gcr.io
     hub: containers.istio.tetratelabs.com
     # Default tag for Istio images.
-    tag: 1.26.7-tetrate0
+    tag: 1.26.7-tetrate0-tlsnist-preview
     # Variant of the image to use.
     # Currently supported are: [debug, distroless]
     variant: ""
diff --git a/charts/istio/1.26.7+tetrate0/ztunnel/values.yaml b/charts/istio/1.26.7+tetrate0/ztunnel/values.yaml
index 7d428e85..a4ce0e6f 100644
--- a/charts/istio/1.26.7+tetrate0/ztunnel/values.yaml
+++ b/charts/istio/1.26.7+tetrate0/ztunnel/values.yaml
@@ -4,7 +4,7 @@ _internal_defaults_do_not_set:
   # Hub to pull from. Image will be `Hub/Image:Tag-Variant`
   hub: containers.istio.tetratelabs.com
   # Tag to pull from. Image will be `Hub/Image:Tag-Variant`
-  tag: 1.26.7-tetrate0
+  tag: 1.26.7-tetrate0-tlsnist-preview
   # Variant to pull. Options are "debug" or "distroless". Unset will use the default for the given version.
   variant: ""