diff --git a/server/endpoints/admin.js b/server/endpoints/admin.js
index 0f3e0c55..fb8d1605 100644
--- a/server/endpoints/admin.js
+++ b/server/endpoints/admin.js
@@ -204,7 +204,7 @@ function adminEndpoints(app) {
         const { workspaceId } = request.params;
         const { userIds } = reqBody(request);
         const { success, error } = await Workspace.updateUsers(
-          escape(Number(workspaceId)),
+          escape(workspaceId),
           userIds
         );
         response.status(200).json({ success, error });
diff --git a/server/endpoints/api/admin/index.js b/server/endpoints/api/admin/index.js
index 73d9efe6..c0a1374b 100644
--- a/server/endpoints/api/admin/index.js
+++ b/server/endpoints/api/admin/index.js
@@ -457,7 +457,7 @@ function apiAdminEndpoints(app) {
         const { workspaceId } = request.params;
         const { userIds } = reqBody(request);
         const { success, error } = await Workspace.updateUsers(
-          escape(Number(workspaceId)),
+          escape(workspaceId),
           userIds
         );
         response.status(200).json({ success, error });