diff --git a/packages/process-palette/package.json b/packages/process-palette/package.json
index c1db705..0860f5b 100644
--- a/packages/process-palette/package.json
+++ b/packages/process-palette/package.json
@@ -48,7 +48,7 @@
     "ps-tree": "1.0.0",
     "shelljs": "^0.7.4",
     "underscore-plus": "^1.0.0",
-    "underscore.string": "~3.2"
+    "underscore.string": "~3.3"
   },
   "description": "Run shell commands via the command palette.",
   "devDependencies": {},