diff --git a/pkg/api/datasources.go b/pkg/api/datasources.go
index 4e00c36f656..f2d72c12312 100644
--- a/pkg/api/datasources.go
+++ b/pkg/api/datasources.go
@@ -492,6 +492,7 @@ func (hs *HTTPServer) UpdateDataSourceByID(c *contextmodel.ReqContext) response.
 // 200: createOrUpdateDatasourceResponse
 // 401: unauthorisedError
 // 403: forbiddenError
+// 409: conflictError
 // 500: internalServerError
 func (hs *HTTPServer) UpdateDataSourceByUID(c *contextmodel.ReqContext) response.Response {
 	cmd := datasources.UpdateDataSourceCommand{}
diff --git a/public/api-merged.json b/public/api-merged.json
index 8e1dde8fa74..6c40acebc14 100644
--- a/public/api-merged.json
+++ b/public/api-merged.json
@@ -4395,6 +4395,9 @@
           "403": {
             "$ref": "#/responses/forbiddenError"
           },
+          "409": {
+            "$ref": "#/responses/conflictError"
+          },
           "500": {
             "$ref": "#/responses/internalServerError"
           }
diff --git a/public/openapi3.json b/public/openapi3.json
index 3552f7d812a..5b2be3da2fe 100644
--- a/public/openapi3.json
+++ b/public/openapi3.json
@@ -18058,6 +18058,9 @@
           "403": {
             "$ref": "#/components/responses/forbiddenError"
           },
+          "409": {
+            "$ref": "#/components/responses/conflictError"
+          },
           "500": {
             "$ref": "#/components/responses/internalServerError"
           }