diff --git a/charts/stable/nextcloud/Chart.yaml b/charts/stable/nextcloud/Chart.yaml
index f22139927dc..4266f10dae8 100644
--- a/charts/stable/nextcloud/Chart.yaml
+++ b/charts/stable/nextcloud/Chart.yaml
@@ -29,7 +29,7 @@ sources:
   - https://github.com/nextcloud/docker
   - https://github.com/nextcloud/helm
 type: application
-version: 21.0.19
+version: 21.0.20
 annotations:
   truecharts.org/catagories: |
     - cloud
diff --git a/charts/stable/nextcloud/questions.yaml b/charts/stable/nextcloud/questions.yaml
index 6dd9695e5ef..36044218afe 100644
--- a/charts/stable/nextcloud/questions.yaml
+++ b/charts/stable/nextcloud/questions.yaml
@@ -180,7 +180,7 @@ questions:
                       label: Max Allowed Resolution
                       schema:
                         type: string
-                        valid_chars: '^[0-9]{3}(\.[0-9]{2})?$'
+                        valid_chars: '^[0-9]{1,5}(\.[0-9]{1,2})?$'
                         show_if: [["imaginary", "=", true]]
                         required: true
                         default: "18.0"