diff --git a/docs/CONFIG-VARS.md b/docs/CONFIG-VARS.md
index 68238b8a..cca0c772 100644
--- a/docs/CONFIG-VARS.md
+++ b/docs/CONFIG-VARS.md
@@ -414,7 +414,7 @@ By default, two block storage StorageClasses are created using the driver, one f
 | INGRESS_NGINX_NAMESPACE | NGINX Ingress Helm installation namespace | string | ingress-nginx | false | | baseline |
 | INGRESS_NGINX_CHART_URL | NGINX Ingress Helm chart URL | string | See [this document](https://kubernetes.github.io/ingress-nginx) for more information. | false | | baseline |
 | INGRESS_NGINX_CHART_NAME | NGINX Ingress Helm chart name | string | ingress-nginx | false | | baseline |
-| INGRESS_NGINX_CHART_VERSION | NGINX Ingress Helm chart version | string | "" | false | If left as "" (empty string), the version is automatically set based on both Kubernetes minor version and cadence version: If Kubernetes minor version >= 1.29.X and cadence version <= 2025.07 → version `4.12.1` is used; If Kubernetes minor version >= 1.29.X and cadence version >= 2025.08 → version `4.13.0` is used; If Kubernetes minor version <= 1.28.X, you must manually set this variable to avoid errors; If defined in `ansible-var.yaml`, the provided value takes precedence over the above logic. See [Supported Versions table](https://github.com/kubernetes/ingress-nginx/?tab=readme-ov-file#supported-versions-table) for the supported versions list. | baseline |
+| INGRESS_NGINX_CHART_VERSION | NGINX Ingress Helm chart version | string | "" | false | If left as "" (empty string), version `4.13.0` is used for Kubernetes clusters >= 1.29.X; for clusters <= 1.28.X, this must be set manually to avoid errors; for cadence ≤ 2025.07, version `4.12.0` is supported (note: Viya is not supported with `4.13.0`); for cadence ≥ 2025.08, any `1.13.x` version is supported — see [Supported Versions table](https://github.com/kubernetes/ingress-nginx/?tab=readme-ov-file#supported-versions-table) for details. | baseline |
 | INGRESS_NGINX_CONFIG | NGINX Ingress Helm values | string | See [this file](../roles/baseline/defaults/main.yml) for more information. Altering this value will affect the cluster. | false | | baseline |
 
 ### Metrics Server
diff --git a/roles/baseline/tasks/ingress-nginx.yaml b/roles/baseline/tasks/ingress-nginx.yaml
index 0de40aa4..8facabb4 100644
--- a/roles/baseline/tasks/ingress-nginx.yaml
+++ b/roles/baseline/tasks/ingress-nginx.yaml
@@ -32,10 +32,10 @@
       kubernetes.core.k8s_cluster_info:
         kubeconfig: "{{ KUBECONFIG }}"
       register: cluster_info
-    # Set the chart version based on cadence version if K8s version is >= threshold
-    - name: Set ingress-nginx chart version
+    # Set the chart version based on the minor version of the Kubernetes server
+    - name: Set the default INGRESS_NGINX_CHART_VERSION based on K8s server minor version
       set_fact:
-        INGRESS_NGINX_CHART_VERSION: "{{ ('4.12.1' if V4_CFG_CADENCE_VERSION is version('2025.07', '<=') else '4.13.0') if cluster_info.version.server.kubernetes.minor | int >= ingressVersions.k8sMinorVersion.value | int else '' }}"
+        INGRESS_NGINX_CHART_VERSION: "{{ ingressVersions.k8sMinorVersion.api.chartVersion if cluster_info.version.server.kubernetes.minor is version(ingressVersions.k8sMinorVersion.value, 'ge') else '' }}"
     # Output the selected chart version for debugging
     - name: Output INGRESS_NGINX_CHART_VERSION
       debug: