diff --git a/package-lock.json b/package-lock.json
index 1ca061ad..985eedaa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -511,6 +511,11 @@
                     "version": "0.0.4",
                     "resolved": "https://registry.npmjs.org/tunnel/-/tunnel-0.0.4.tgz",
                     "integrity": "sha1-LTeFoVjBdMmhbcLARuxfxfF0IhM="
+                },
+                "underscore": {
+                    "version": "1.8.3",
+                    "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.8.3.tgz",
+                    "integrity": "sha1-Tz+1OxBuYJf8+ctBCfKl6b36UCI="
                 }
             }
         },
@@ -521,9 +526,9 @@
             "dev": true
         },
         "underscore": {
-            "version": "1.8.3",
-            "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.8.3.tgz",
-            "integrity": "sha1-Tz+1OxBuYJf8+ctBCfKl6b36UCI="
+            "version": "1.13.1",
+            "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.1.tgz",
+            "integrity": "sha512-hzSoAVtJF+3ZtiFX0VgfFPHEDRm7Y/QPjGyNo4TVdnDTdft3tr8hEkD25a1jC+TjTuE7tkHGKkhwCgs9dgBB2g=="
         },
         "wrappy": {
             "version": "1.0.2",
diff --git a/package.json b/package.json
index dffce23d..9541f861 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "dependencies": {
         "tunnel": "0.0.6",
         "typed-rest-client": "1.2.0",
-        "underscore": "1.8.3"
+        "underscore": "1.13.1"
     },
     "devDependencies": {
         "@types/mocha": "^2.2.44",