diff --git a/charts/universal-chart/CHANGELOG.md b/charts/universal-chart/CHANGELOG.md
index 0425155..ecf8127 100644
--- a/charts/universal-chart/CHANGELOG.md
+++ b/charts/universal-chart/CHANGELOG.md
@@ -1,4 +1,7 @@
 # Changelog
+## 3.4.0 - Jun 25, 2022
+* feat: optional namespaceSelector for servicemonitors
+
 ## 3.3.0 - Jun 13, 2022
 * feat: add PrometheusRule support and tests
 
diff --git a/charts/universal-chart/Chart.yaml b/charts/universal-chart/Chart.yaml
index f6ae3b2..d79168a 100644
--- a/charts/universal-chart/Chart.yaml
+++ b/charts/universal-chart/Chart.yaml
@@ -1,7 +1,7 @@
 apiVersion: v2
 description: Nixys universal Helm chart for deploy your apps to Kubernetes
 name: universal-chart
-version: 3.3.0
+version: 3.4.0
 maintainers:
 - name: Roman Andreev
   email: r.andreev@nixys.ru
diff --git a/charts/universal-chart/README.md b/charts/universal-chart/README.md
index 51ceea6..9f163ae 100644
--- a/charts/universal-chart/README.md
+++ b/charts/universal-chart/README.md
@@ -394,11 +394,12 @@ Secret `data` object is a map where value can be a string, json or base64 encode
 
 `servicemonitors` is a map of the ServiceMonitor parameters, where key is a name.
 
-| Name                  | Description                              | Value |
-|-----------------------|------------------------------------------|-------|
-| `labels`              | Extra ServiceMonitor labels              | `{}`  |
-| `endpoints`           | Array of ServiceMonitor endpoints        | `[]`  |
-| `extraSelectorLabels` | Extra selectorLabels for select workload | `{}`  |
+| Name                  | Description                                  | Value |
+|-----------------------|----------------------------------------------|-------|
+| `labels`              | Extra ServiceMonitor labels                  | `{}`  |
+| `endpoints`           | (REQUIRED) Array of ServiceMonitor endpoints | `[]`  |
+| `extraSelectorLabels` | Extra selectorLabels for select workload     | `{}`  |
+| `namespaceSelector`   | Extra namespaceSelector for ServiceMonitor   | `{}`  |
 
 ### typed Volumes parameters
 
diff --git a/charts/universal-chart/results/servicemonitors.yml b/charts/universal-chart/results/servicemonitors.yml
index 4ad42b8..3273f11 100644
--- a/charts/universal-chart/results/servicemonitors.yml
+++ b/charts/universal-chart/results/servicemonitors.yml
@@ -20,3 +20,48 @@ spec:
       app.kubernetes.io/name: test
       app.kubernetes.io/instance: test
       app: nginx
+---
+# Source: universal-chart/templates/servicemonitor.yml
+kind: ServiceMonitor
+apiVersion: monitoring.coreos.com/v1
+metadata:
+  name: test-sm2
+  namespace: "default"
+  labels:
+    app.kubernetes.io/name: test
+    app.kubernetes.io/instance: test
+    app.kubernetes.io/managed-by: Helm
+spec:
+  endpoints:
+    - interval: 30s
+      path: /metrics
+      port: exporter
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: test
+      app.kubernetes.io/instance: test
+  namespaceSelector:
+    any: true
+---
+# Source: universal-chart/templates/servicemonitor.yml
+kind: ServiceMonitor
+apiVersion: monitoring.coreos.com/v1
+metadata:
+  name: test-sm3
+  namespace: "default"
+  labels:
+    app.kubernetes.io/name: test
+    app.kubernetes.io/instance: test
+    app.kubernetes.io/managed-by: Helm
+spec:
+  endpoints:
+    - interval: 30s
+      path: /metrics
+      port: exporter
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: test
+      app.kubernetes.io/instance: test
+  namespaceSelector:
+    matchNames:
+    - production
diff --git a/charts/universal-chart/samples/servicemonitors.yml b/charts/universal-chart/samples/servicemonitors.yml
index 82ba57a..6b471f3 100644
--- a/charts/universal-chart/samples/servicemonitors.yml
+++ b/charts/universal-chart/samples/servicemonitors.yml
@@ -8,3 +8,18 @@ servicemonitors:
       app: nginx
     labels:
       foo: foo
+  sm2:
+    endpoints:
+    - interval: 30s
+      port: exporter
+      path: /metrics
+    namespaceSelector:
+      any: true
+  sm3:
+    endpoints:
+    - interval: 30s
+      port: exporter
+      path: /metrics
+    namespaceSelector:
+      matchNames:
+        - production
diff --git a/charts/universal-chart/templates/servicemonitor.yml b/charts/universal-chart/templates/servicemonitor.yml
index 6b6a5f8..61fb831 100644
--- a/charts/universal-chart/templates/servicemonitor.yml
+++ b/charts/universal-chart/templates/servicemonitor.yml
@@ -16,4 +16,8 @@ spec:
       {{- include "helpers.app.selectorLabels" $ | nindent 6 }}
       {{- with $.Values.generic.extraSelectorLabels }}{{- include "helpers.tplvalues.render" (dict "value" . "context" $) | nindent 6 }}{{- end -}}
       {{- with .extraSelectorLabels }}{{- include "helpers.tplvalues.render" (dict "value" . "context" $) | nindent 6 }}{{- end -}}
+  {{- with .namespaceSelector }}
+  namespaceSelector:
+    {{- toYaml . | nindent 4 -}}
+  {{- end -}}
 {{- end -}}