diff --git a/packages/nbinteract-core/package-lock.json b/packages/nbinteract-core/package-lock.json
index f492c58..6b2f5c3 100644
--- a/packages/nbinteract-core/package-lock.json
+++ b/packages/nbinteract-core/package-lock.json
@@ -1,6 +1,6 @@
 {
 	"name": "nbinteract-core",
-	"version": "0.2.4",
+	"version": "0.2.6",
 	"lockfileVersion": 1,
 	"requires": true,
 	"dependencies": {
@@ -1505,9 +1505,9 @@
 			"integrity": "sha1-rOEWq1V80Zc4ak6I9GhTeMiy5Po="
 		},
 		"underscore": {
-			"version": "1.9.2",
-			"resolved": "https://registry.npmjs.org/underscore/-/underscore-1.9.2.tgz",
-			"integrity": "sha512-D39qtimx0c1fI3ya1Lnhk3E9nONswSKhnffBI0gME9C99fYOkNi04xs8K6pePLhvl1frbDemkaBQ5ikWllR2HQ=="
+			"version": "1.13.1",
+			"resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.1.tgz",
+			"integrity": "sha512-hzSoAVtJF+3ZtiFX0VgfFPHEDRm7Y/QPjGyNo4TVdnDTdft3tr8hEkD25a1jC+TjTuE7tkHGKkhwCgs9dgBB2g=="
 		},
 		"uri-js": {
 			"version": "4.2.2",