diff --git a/charts/stable/tailscale/Chart.yaml b/charts/stable/tailscale/Chart.yaml
index e7242206dd8..2212ec415d2 100644
--- a/charts/stable/tailscale/Chart.yaml
+++ b/charts/stable/tailscale/Chart.yaml
@@ -7,7 +7,7 @@ annotations:
   truecharts.org/min_helm_version: "3.11"
   truecharts.org/train: stable
 apiVersion: v2
-appVersion: 1.66.3
+appVersion: 1.66.4
 dependencies:
   - name: common
     version: 23.0.10
@@ -34,4 +34,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/tailscale
   - https://hub.docker.com/r/tailscale/tailscale
 type: application
-version: 9.1.4
+version: 9.1.5
diff --git a/charts/stable/tailscale/values.yaml b/charts/stable/tailscale/values.yaml
index c0bba87b3f0..335450c9ec9 100644
--- a/charts/stable/tailscale/values.yaml
+++ b/charts/stable/tailscale/values.yaml
@@ -1,7 +1,7 @@
 image:
   repository: tailscale/tailscale
   pullPolicy: IfNotPresent
-  tag: v1.66.3@sha256:cf8e97667e8be250caaed88694cec0befe11040bbd5a3de3b33086cc52ef4eb1
+  tag: v1.66.4@sha256:c9a124a3fe49c95825ee95fd15312ea28faa2829334bd485ed1b948bb7990821
 serviceAccount:
   main:
     enabled: true