diff --git a/packages/running/package.json b/packages/running/package.json
index 5f6c371880ab..d812470c72ce 100644
--- a/packages/running/package.json
+++ b/packages/running/package.json
@@ -42,7 +42,6 @@
     "@phosphor/coreutils": "^1.3.1",
     "@phosphor/disposable": "^1.3.0",
     "@phosphor/signaling": "^1.3.0",
-    "@phosphor/widgets": "^1.9.0",
     "react": "~16.8.4"
   },
   "devDependencies": {
diff --git a/packages/running/style/index.css b/packages/running/style/index.css
index 546e18daa8a5..5fdb753111f2 100644
--- a/packages/running/style/index.css
+++ b/packages/running/style/index.css
@@ -4,7 +4,6 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-@import url('~@phosphor/widgets/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 
 @import url('./base.css');