diff --git a/charts/enterprise/traefik/Chart.yaml b/charts/enterprise/traefik/Chart.yaml
index 2f538c9296d..31b55bb6d47 100644
--- a/charts/enterprise/traefik/Chart.yaml
+++ b/charts/enterprise/traefik/Chart.yaml
@@ -36,4 +36,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/enterprise/traefik
   - https://github.com/truecharts/containers/tree/master/apps/traefik
 type: application
-version: 26.6.2
+version: 26.6.3
diff --git a/charts/enterprise/traefik/templates/middlewares/tc-headers.yaml b/charts/enterprise/traefik/templates/middlewares/tc-headers.yaml
index e8678d52c41..6964b28070e 100644
--- a/charts/enterprise/traefik/templates/middlewares/tc-headers.yaml
+++ b/charts/enterprise/traefik/templates/middlewares/tc-headers.yaml
@@ -52,7 +52,7 @@ spec:
     browserXssFilter: true
     sslForceHost: true
     referrerPolicy: same-origin
-    Content-Security-Policy: frame-ancestors 'self'; form-action 'self'
+    contentSecurityPolicy: frame-ancestors 'self'; form-action 'self'
     customRequestHeaders:
       X-Forwarded-Proto: "https"
     customResponseHeaders: