diff --git a/docs/en/modules/tenant-management.md b/docs/en/modules/tenant-management.md
index 101c7f076f..b19f390a41 100644
--- a/docs/en/modules/tenant-management.md
+++ b/docs/en/modules/tenant-management.md
@@ -146,7 +146,7 @@ This section can be used as a reference if you want to [customize](../framework/
 
 * `TenantAppService`
 
-In addition to tenant CRUD operations, `ITenantAppService` provides `GetDefaultConnectionStringAsync`, `UpdateDefaultConnectionStringAsync` and `DeleteDefaultConnectionStringAsync`. The HTTP API exposes these operations as `GET`, `PUT` and `DELETE` on `/api/multi-tenancy/tenants/{id}/default-connection-string`; the `PUT` request receives `defaultConnectionString` as a query parameter.
+In addition to tenant CRUD operations, `ITenantAppService` provides `GetDefaultConnectionStringAsync`, `UpdateDefaultConnectionStringAsync` and `DeleteDefaultConnectionStringAsync`. The HTTP API exposes these operations as `GET`, `PUT` and `DELETE` on `/api/multi-tenancy/tenants/{id}/default-connection-string`; the `PUT` request receives `defaultConnectionString` in the request body, as a JSON string with the `application/json` content type.
 
 #### Permissions
 
diff --git a/modules/tenant-management/src/Volo.Abp.TenantManagement.HttpApi.Client/ClientProxies/multi-tenancy-generate-proxy.json b/modules/tenant-management/src/Volo.Abp.TenantManagement.HttpApi.Client/ClientProxies/multi-tenancy-generate-proxy.json
index de1f6494f6..1122511d38 100644
--- a/modules/tenant-management/src/Volo.Abp.TenantManagement.HttpApi.Client/ClientProxies/multi-tenancy-generate-proxy.json
+++ b/modules/tenant-management/src/Volo.Abp.TenantManagement.HttpApi.Client/ClientProxies/multi-tenancy-generate-proxy.json
@@ -496,7 +496,7 @@
                   "isOptional": false,
                   "defaultValue": null,
                   "constraintTypes": null,
-                  "bindingSourceId": "ModelBinding",
+                  "bindingSourceId": "Body",
                   "descriptorName": ""
                 }
               ],
diff --git a/modules/tenant-management/src/Volo.Abp.TenantManagement.HttpApi/Volo/Abp/TenantManagement/TenantController.cs b/modules/tenant-management/src/Volo.Abp.TenantManagement.HttpApi/Volo/Abp/TenantManagement/TenantController.cs
index f9dee1c9c3..4312066e02 100644
--- a/modules/tenant-management/src/Volo.Abp.TenantManagement.HttpApi/Volo/Abp/TenantManagement/TenantController.cs
+++ b/modules/tenant-management/src/Volo.Abp.TenantManagement.HttpApi/Volo/Abp/TenantManagement/TenantController.cs
@@ -63,7 +63,7 @@ public class TenantController : AbpControllerBase, ITenantAppService //TODO: Thr
 
     [HttpPut]
     [Route("{id}/default-connection-string")]
-    public virtual Task UpdateDefaultConnectionStringAsync(Guid id, [DisableAuditing] string defaultConnectionString)
+    public virtual Task UpdateDefaultConnectionStringAsync(Guid id, [FromBody] [DisableAuditing] string defaultConnectionString)
     {
         return TenantAppService.UpdateDefaultConnectionStringAsync(id, defaultConnectionString);
     }
diff --git a/modules/tenant-management/src/Volo.Abp.TenantManagement.Web/wwwroot/client-proxies/multi-tenancy-proxy.js b/modules/tenant-management/src/Volo.Abp.TenantManagement.Web/wwwroot/client-proxies/multi-tenancy-proxy.js
index 1ef5cddae9..242fb054a5 100644
--- a/modules/tenant-management/src/Volo.Abp.TenantManagement.Web/wwwroot/client-proxies/multi-tenancy-proxy.js
+++ b/modules/tenant-management/src/Volo.Abp.TenantManagement.Web/wwwroot/client-proxies/multi-tenancy-proxy.js
@@ -58,9 +58,10 @@
 
     volo.abp.tenantManagement.tenant.updateDefaultConnectionString = function(id, defaultConnectionString, ajaxParams) {
       return abp.ajax($.extend(true, {
-        url: abp.appPath + 'api/multi-tenancy/tenants/' + id + '/default-connection-string' + abp.utils.buildQueryString([{ name: 'defaultConnectionString', value: defaultConnectionString }]) + '',
+        url: abp.appPath + 'api/multi-tenancy/tenants/' + id + '/default-connection-string',
         type: 'PUT',
-        dataType: null
+        dataType: null,
+        data: JSON.stringify(defaultConnectionString)
       }, ajaxParams));
     };