diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2021-03-01/bastionHost.json b/specification/network/resource-manager/Microsoft.Network/stable/2021-03-01/bastionHost.json
index 15eb14ff7c69..dc519e06c322 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2021-03-01/bastionHost.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2021-03-01/bastionHost.json
@@ -180,6 +180,62 @@
         "x-ms-long-running-operation-options": {
           "final-state-via": "azure-async-operation"
         }
+      },
+      "patch": {
+        "tags": [
+          "BastionHosts"
+        ],
+        "operationId": "BastionHosts_UpdateTags",
+        "description": "Updates Tags for BastionHost resource",
+        "parameters": [
+          {
+            "$ref": "./network.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "#/parameters/ResourceGroupName"
+          },
+          {
+            "$ref": "#/parameters/BastionHostName"
+          },
+          {
+            "name": "parameters",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "./network.json#/definitions/TagsObject"
+            },
+            "description": "Parameters supplied to update BastionHost tags."
+          },
+          {
+            "$ref": "./network.json#/parameters/ApiVersionParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Update successful. The operation returns the resulting BastionHost resource.",
+            "schema": {
+              "$ref": "#/definitions/BastionHost"
+            }
+          },
+          "202": {
+            "description": "Accepted and the operation will complete asynchronously."
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "./network.json#/definitions/CloudError"
+            }
+          }
+        },
+        "x-ms-examples": {
+          "Patch Bastion Host": {
+            "$ref": "./examples/BastionHostPatch.json"
+          }
+        },
+        "x-ms-long-running-operation": true,
+        "x-ms-long-running-operation-options": {
+          "final-state-via": "azure-async-operation"
+        }
       }
     },
     "/subscriptions/{subscriptionId}/providers/Microsoft.Network/bastionHosts": {
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2021-03-01/examples/BastionHostPatch.json b/specification/network/resource-manager/Microsoft.Network/stable/2021-03-01/examples/BastionHostPatch.json
new file mode 100644
index 000000000000..5ccf798ee4f9
--- /dev/null
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2021-03-01/examples/BastionHostPatch.json
@@ -0,0 +1,55 @@
+{
+  "parameters": {
+    "api-version": "2021-03-01",
+    "subscriptionId": "subid",
+    "resourceGroupName": "rg1",
+    "bastionHostName": "bastionhosttenant",
+    "parameters": {
+      "tags": {
+        "tag1": "value1",
+        "tag2": "value2"
+      }
+    }
+  },
+  "responses": {
+    "202": {},
+    "200": {
+      "body": {
+        "name": "bastionhosttenant",
+        "id": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/bastionHosts/bastionhosttenant'",
+        "type": "Microsoft.Network/bastionHosts",
+        "etag": "w/\\00000000-0000-0000-0000-000000000000\\",
+        "location": "West US",
+        "tags": {
+          "tag1": "value1",
+          "tag2": "value2"
+        },
+        "properties": {
+          "provisioningState": "Succeeded",
+          "dnsName": "bst-9d89d361-100e-4c01-b92d-466548c476dc.bastion.azure.com",
+          "ipConfigurations": [
+            {
+              "name": "bastionHostIpConfiguration",
+              "id": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/bastionHosts/bastionhosttenant/bastionHostIpConfigurations/bastionHostIpConfiguration",
+              "etag": "w/\\00000000-0000-0000-0000-000000000000\\",
+              "type": "Microsoft.Network/bastionHosts/bastionHostIpConfigurations",
+              "properties": {
+                "provisioningState": "Succeeded",
+                "privateIPAllocationMethod": "Dynamic",
+                "subnet": {
+                  "id": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/virtualNetworks/vnet2/subnets/BastionHostSubnet"
+                },
+                "publicIPAddress": {
+                  "id": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/publicIPAddresses/pipName"
+                }
+              }
+            }
+          ]
+        },
+        "sku": {
+          "name": "Standard"
+        }
+      }
+    }
+  }
+}