diff --git a/package-lock.json b/package-lock.json
index 0f02738..ce689e8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4946,6 +4946,7 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-2.0.0.tgz",
       "integrity": "sha1-gTg9ctsFT8zPUzbaqQLxgvbtuyg=",
+      "optional": true,
       "requires": {
         "is-glob": "^2.0.0"
       }
@@ -5763,7 +5764,8 @@
     "is-extglob": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-1.0.0.tgz",
-      "integrity": "sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA="
+      "integrity": "sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA=",
+      "optional": true
     },
     "is-finite": {
       "version": "1.0.2",
@@ -5782,6 +5784,7 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-2.0.1.tgz",
       "integrity": "sha1-0Jb5JqPe1WAPP9/ZEZjLCIjC2GM=",
+      "optional": true,
       "requires": {
         "is-extglob": "^1.0.0"
       }
@@ -7551,6 +7554,7 @@
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-2.1.1.tgz",
       "integrity": "sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=",
+      "optional": true,
       "requires": {
         "remove-trailing-separator": "^1.0.1"
       }
@@ -12685,9 +12689,9 @@
       }
     },
     "underscore": {
-      "version": "1.9.1",
-      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.9.1.tgz",
-      "integrity": "sha512-5/4etnCkd9c8gwgowi5/om/mYO5ajCaOgdzj/oW+0eQV9WxKBDZw5+ycmKmeaTXjInS/W0BzpGLo2xR2aBwZdg=="
+      "version": "1.13.1",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.1.tgz",
+      "integrity": "sha512-hzSoAVtJF+3ZtiFX0VgfFPHEDRm7Y/QPjGyNo4TVdnDTdft3tr8hEkD25a1jC+TjTuE7tkHGKkhwCgs9dgBB2g=="
     },
     "unicode": {
       "version": "11.0.1",