diff --git a/helm/defectdojo/Chart.lock b/helm/defectdojo/Chart.lock
index f35076277f8..b36a68dbaa0 100644
--- a/helm/defectdojo/Chart.lock
+++ b/helm/defectdojo/Chart.lock
@@ -4,6 +4,6 @@ dependencies:
   version: 16.7.27
 - name: valkey
   repository: oci://registry-1.docker.io/cloudpirates
-  version: 0.20.2
-digest: sha256:58b4e410be866b64fa78f139b6e9ea6ca9d8bda76f9d3bf2b05e857d9f1cad07
-generated: "2026-05-13T01:05:18.277272591Z"
+  version: 0.21.1
+digest: sha256:4fb8fc83195e1d8851cc53bca67d8811f40a056904424d1f6406afa500438f39
+generated: "2026-05-27T02:29:06.988879384Z"
diff --git a/helm/defectdojo/Chart.yaml b/helm/defectdojo/Chart.yaml
index 8f25622ff07..99e4a66b907 100644
--- a/helm/defectdojo/Chart.yaml
+++ b/helm/defectdojo/Chart.yaml
@@ -14,7 +14,7 @@ dependencies:
     repository: "oci://us-docker.pkg.dev/os-public-container-registry/defectdojo"
     condition: postgresql.enabled
   - name: valkey
-    version: 0.20.2
+    version: 0.21.1
     repository: "oci://registry-1.docker.io/cloudpirates"
     condition: valkey.enabled
 # For correct syntax, check https://artifacthub.io/docs/topics/annotations/helm/
@@ -34,4 +34,4 @@ dependencies:
 #     description: Critical bug
 annotations:
   artifacthub.io/prerelease: "true"
-  artifacthub.io/changes: "- kind: changed\n  description: Update valkey Docker tag from 0.20.0 to v0.20.1 (_/defect_/Chart.yaml)\n- kind: changed\n  description: Update valkey Docker tag from 0.20.1 to v0.20.2 (_/defect_/Chart.yaml)\n"
+  artifacthub.io/changes: "- kind: changed\n  description: Update valkey Docker tag from 0.20.0 to v0.20.1 (_/defect_/Chart.yaml)\n- kind: changed\n  description: Update valkey Docker tag from 0.20.1 to v0.20.2 (_/defect_/Chart.yaml)\n- kind: changed\n  description: Update valkey Docker tag from 0.20.2 to v0.21.1 (_/defect_/Chart.yaml)\n"
diff --git a/helm/defectdojo/README.md b/helm/defectdojo/README.md
index ba0a4699a8b..a77def333cc 100644
--- a/helm/defectdojo/README.md
+++ b/helm/defectdojo/README.md
@@ -525,7 +525,7 @@ A Helm chart for Kubernetes to install DefectDojo
 
 | Repository | Name | Version |
 |------------|------|---------|
-| oci://registry-1.docker.io/cloudpirates | valkey | 0.20.2 |
+| oci://registry-1.docker.io/cloudpirates | valkey | 0.21.1 |
 | oci://us-docker.pkg.dev/os-public-container-registry/defectdojo | postgresql | 16.7.27 |
 
 ## Values