diff --git a/charts/stable/bookstack/Chart.yaml b/charts/stable/bookstack/Chart.yaml
index a745f243d74..810ceeddca7 100644
--- a/charts/stable/bookstack/Chart.yaml
+++ b/charts/stable/bookstack/Chart.yaml
@@ -9,7 +9,7 @@ annotations:
   trueforge.org/min_helm_version: "3.14"
   trueforge.org/train: stable
 apiVersion: v2
-appVersion: 26.03.20260315
+appVersion: 26.05.20260528
 dependencies:
   - name: common
     version: 29.3.4
@@ -47,5 +47,5 @@ sources:
   - https://github.com/trueforge-org/truecharts/tree/master/charts/stable/bookstack
   - https://www.bookstackapp.com/
 type: application
-version: 21.6.1
+version: 21.7.0
 
diff --git a/charts/stable/bookstack/values.yaml b/charts/stable/bookstack/values.yaml
index 4448fccc904..900311fd0a8 100644
--- a/charts/stable/bookstack/values.yaml
+++ b/charts/stable/bookstack/values.yaml
@@ -2,7 +2,7 @@
 image:
   repository: ghcr.io/linuxserver/bookstack
   pullPolicy: IfNotPresent
-  tag: 26.03.20260315@sha256:e85aa4adac2ec0e5ea66f247af545139b5c1fc58632c0b4232ef53be1f3489bb
+  tag: 26.05.20260528@sha256:2ebf97852661b15aae2660aa1bf622deac613189634821e3351530e79a9b6e36
 securityContext:
   container:
     readOnlyRootFilesystem: false