diff --git a/package.json b/package.json
index 89176b2..2b4d7c8 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
   "main": "src/ssh-keygen",
   "description": "Generates SSH key-pairs",
   "dependencies": {
-    "underscore": "1.4.x"
+    "underscore": "1.12.x"
   },
   "licenses": [
     {
diff --git a/yarn.lock b/yarn.lock
index 2e4e640..5a09a9d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,6 @@
 # yarn lockfile v1
 
 
-underscore@1.4.x:
-  version "1.4.4"
-  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.4.4.tgz#61a6a32010622afa07963bf325203cf12239d604"
+underscore@1.12.x:
+  version "1.12.1"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.12.1.tgz#7bb8cc9b3d397e201cf8553336d262544ead829e"