diff --git a/charts/meowhq-istio-gateway/README.md b/charts/meowhq-istio-gateway/README.md
index 3cabac7..f7c0483 100644
--- a/charts/meowhq-istio-gateway/README.md
+++ b/charts/meowhq-istio-gateway/README.md
@@ -36,7 +36,7 @@ please see [examples](examples/README.md) for more about usage and examples of v
 Global settings shares common variables across the ingress gateway configuration
 
 - `global.istioGateway.apiVersion` - API version for Gateway resource (default: v1)
-- `global.istioGateway.namespace` - Target namespace for Gateway deployment (default: default)
+- `global.istioGateway.namespace` - Target namespace for Gateway deployment (default: istio-system)
 
 ### Default Gateway Settings
 
diff --git a/charts/meowhq-istio-gateway/tests/default-values-gateway_test.yaml b/charts/meowhq-istio-gateway/tests/default-values-gateway_test.yaml
index b4c8761..a881718 100644
--- a/charts/meowhq-istio-gateway/tests/default-values-gateway_test.yaml
+++ b/charts/meowhq-istio-gateway/tests/default-values-gateway_test.yaml
@@ -15,7 +15,7 @@ tests:
       apiVersion: networking.istio.io/v1
       kind: Gateway
       name: ingress-gateway
-      namespace: default
+      namespace: istio-system
   - equal:
       path: spec
       value:
diff --git a/charts/meowhq-istio-gateway/tests/ingress-gateway-additional-service-ports_test.yaml b/charts/meowhq-istio-gateway/tests/ingress-gateway-additional-service-ports_test.yaml
index 89b212f..3ccb2e5 100644
--- a/charts/meowhq-istio-gateway/tests/ingress-gateway-additional-service-ports_test.yaml
+++ b/charts/meowhq-istio-gateway/tests/ingress-gateway-additional-service-ports_test.yaml
@@ -38,7 +38,7 @@ tests:
       apiVersion: networking.istio.io/v1
       kind: Gateway
       name: ingress-gateway
-      namespace: default
+      namespace: istio-system
   - equal:
       path: spec
       value:
diff --git a/charts/meowhq-istio-gateway/tests/ingress-gateway-additionalServers_test.yaml b/charts/meowhq-istio-gateway/tests/ingress-gateway-additionalServers_test.yaml
index d2e3440..8d7d339 100644
--- a/charts/meowhq-istio-gateway/tests/ingress-gateway-additionalServers_test.yaml
+++ b/charts/meowhq-istio-gateway/tests/ingress-gateway-additionalServers_test.yaml
@@ -17,7 +17,7 @@ tests:
       apiVersion: networking.istio.io/v1
       kind: Gateway
       name: ingress-gateway
-      namespace: default
+      namespace: istio-system
   - equal:
       path: spec
       value:
diff --git a/charts/meowhq-istio-gateway/tests/ingress-gateway_test.yaml b/charts/meowhq-istio-gateway/tests/ingress-gateway_test.yaml
index 93ddb75..3913e03 100644
--- a/charts/meowhq-istio-gateway/tests/ingress-gateway_test.yaml
+++ b/charts/meowhq-istio-gateway/tests/ingress-gateway_test.yaml
@@ -17,7 +17,7 @@ tests:
       apiVersion: networking.istio.io/v1
       kind: Gateway
       name: ingress-gateway
-      namespace: default
+      namespace: istio-system
   - equal:
       path: spec
       value:
@@ -45,7 +45,7 @@ tests:
       apiVersion: networking.istio.io/v1
       kind: Gateway
       name: ingress-gateway
-      namespace: default
+      namespace: istio-system
   - equal:
       path: spec
       value:
diff --git a/charts/meowhq-istio-gateway/tests/internal-ingress-gateway_test.yaml b/charts/meowhq-istio-gateway/tests/internal-ingress-gateway_test.yaml
index 73efbf1..1ffa954 100644
--- a/charts/meowhq-istio-gateway/tests/internal-ingress-gateway_test.yaml
+++ b/charts/meowhq-istio-gateway/tests/internal-ingress-gateway_test.yaml
@@ -17,7 +17,7 @@ tests:
       apiVersion: networking.istio.io/v1
       kind: Gateway
       name: internal-ingress-gateway
-      namespace: default
+      namespace: istio-system
   - equal:
       path: spec
       value:
diff --git a/charts/meowhq-istio-gateway/tests/multicluster-gateway_test.yaml b/charts/meowhq-istio-gateway/tests/multicluster-gateway_test.yaml
index 637e42d..948f447 100644
--- a/charts/meowhq-istio-gateway/tests/multicluster-gateway_test.yaml
+++ b/charts/meowhq-istio-gateway/tests/multicluster-gateway_test.yaml
@@ -17,7 +17,7 @@ tests:
       apiVersion: networking.istio.io/v1
       kind: Gateway
       name: cross-network-gateway
-      namespace: default
+      namespace: istio-system
   - equal:
       path: spec
       value:
@@ -62,7 +62,7 @@ tests:
       apiVersion: networking.istio.io/v1
       kind: Gateway
       name: istiod-gateway
-      namespace: default
+      namespace: istio-system
   - equal:
       path: spec
       value:
diff --git a/charts/meowhq-istio-gateway/values.yaml b/charts/meowhq-istio-gateway/values.yaml
index 6d5e654..af97eaa 100644
--- a/charts/meowhq-istio-gateway/values.yaml
+++ b/charts/meowhq-istio-gateway/values.yaml
@@ -12,7 +12,7 @@
 global:
   istioGateway:
     apiVersion: v1
-    namespace: default
+    namespace: istio-system
 
 istioGateway:
   enabled: true