diff --git a/Pipfile.lock b/Pipfile.lock
index 164c257..5d39536 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -421,11 +421,8 @@
             "version": "==0.5.1"
         },
         "widgetsnbextension": {
-            "hashes": [
-                "sha256:120f85acc3976450220b03b8933ce48678e518905cca69fc3c856ea5a0144196",
-                "sha256:8c9b4d73e388f2484296be18432d3cc0b8d59de243079a0db16a56c5571e1f86"
-            ],
-            "version": "==3.5.0"
+            "hashes": [],
+            "version": "==4.0.9"
         }
     }
 }