Integrity

packages/apputils-extension/package.json

@@ -37,6 +37,7 @@
     "@jupyterlab/coreutils": "^2.1.4",
     "@jupyterlab/mainmenu": "^0.7.4",
     "@jupyterlab/services": "^3.1.4",
+    "@phosphor/algorithm": "^1.1.2",
     "@phosphor/commands": "^1.6.1",
     "@phosphor/coreutils": "^1.3.0",
     "@phosphor/disposable": "^1.1.2",