diff --git a/chart/Chart.yaml b/chart/Chart.yaml
index f268f5d..79e031a 100644
--- a/chart/Chart.yaml
+++ b/chart/Chart.yaml
@@ -3,7 +3,7 @@ description: A Helm chart for deploying OTS
 name: ots
 version: 1.8.4
 # renovate: datasource=docker depName=ghcr.io/luzifer/ots
-appVersion: '1.21.7'
+appVersion: '1.21.8'
 annotations:
   artifacthub.io/links: |
     - name: Helm Chart
diff --git a/chart/values.yaml b/chart/values.yaml
index 148d0c1..5af0385 100644
--- a/chart/values.yaml
+++ b/chart/values.yaml
@@ -9,7 +9,7 @@ image:
   pullPolicy: IfNotPresent
   # Overrides the image tag whose default is the chart appVersion.
   # renovate: datasource=docker depName=ghcr.io/luzifer/ots
-  tag: 'v1.21.7'
+  tag: 'v1.21.8'
 
 redis:
   enabled: true