diff --git a/jupyter-js-widgets/package.json b/jupyter-js-widgets/package.json
index 8ffa46609c..965b2672ad 100644
--- a/jupyter-js-widgets/package.json
+++ b/jupyter-js-widgets/package.json
@@ -82,7 +82,7 @@
     "webpack": "^1.12.11"
   },
   "dependencies": {
-    "@jupyterlab/services": "^0.39.1",
+    "@jupyterlab/services": "^0.41.0",
     "@phosphor/algorithm": "^1.0.0",
     "@phosphor/domutils": "^1.0.0",
     "@phosphor/messaging": "^1.1.0",