diff --git a/package-lock.json b/package-lock.json
index 72961ca..61d05a6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,7 +8,7 @@
       "version": "1.3.0",
       "license": "MIT",
       "dependencies": {
-        "underscore": "1.8.3"
+        "underscore": "1.12.1"
       },
       "devDependencies": {
         "expect.js": "=0.3.1",
@@ -1055,9 +1055,9 @@
       }
     },
     "node_modules/underscore": {
-      "version": "1.8.3",
-      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.8.3.tgz",
-      "integrity": "sha1-Tz+1OxBuYJf8+ctBCfKl6b36UCI="
+      "version": "1.12.1",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.12.1.tgz",
+      "integrity": "sha512-hEQt0+ZLDVUMhebKxL4x1BTtDY7bavVofhZ9KZ4aI26X9SRaE+Y3m83XUL1UP2jn8ynjndwCCpEHdUG+9pP1Tw=="
     },
     "node_modules/util": {
       "version": "0.11.0",
@@ -2058,9 +2058,9 @@
       }
     },
     "underscore": {
-      "version": "1.8.3",
-      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.8.3.tgz",
-      "integrity": "sha1-Tz+1OxBuYJf8+ctBCfKl6b36UCI="
+      "version": "1.12.1",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.12.1.tgz",
+      "integrity": "sha512-hEQt0+ZLDVUMhebKxL4x1BTtDY7bavVofhZ9KZ4aI26X9SRaE+Y3m83XUL1UP2jn8ynjndwCCpEHdUG+9pP1Tw=="
     },
     "util": {
       "version": "0.11.0",
diff --git a/package.json b/package.json
index 44c91c9..92e4c28 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "test": "mocha test.js"
   },
   "dependencies": {
-    "underscore": "1.8.3"
+    "underscore": "1.12.1"
   },
   "devDependencies": {
     "expect.js": "=0.3.1",