diff --git a/package-lock.json b/package-lock.json
index 81c282d..126035d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -966,6 +966,7 @@
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/adler-32/-/adler-32-1.2.0.tgz",
       "integrity": "sha1-aj5r8KY5ALoVZSgIyxXGgT0aXyU=",
+      "optional": true,
       "requires": {
         "exit-on-epipe": "~1.0.1",
         "printj": "~1.1.0"
@@ -1389,7 +1390,8 @@
     "commander": {
       "version": "2.20.0",
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
-      "integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ=="
+      "integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==",
+      "optional": true
     },
     "commondir": {
       "version": "1.0.1",
@@ -1477,6 +1479,7 @@
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/crc-32/-/crc-32-1.2.0.tgz",
       "integrity": "sha512-1uBwHxF+Y/4yF5G48fwnKq6QsIXheor3ZLPT80yGBV1oEUwpPojlEhQbWKVw1VwcTQyMGHK1/XMmTjmlsmTTGA==",
+      "optional": true,
       "requires": {
         "exit-on-epipe": "~1.0.1",
         "printj": "~1.1.0"
@@ -1765,7 +1768,8 @@
     "exit-on-epipe": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/exit-on-epipe/-/exit-on-epipe-1.0.1.tgz",
-      "integrity": "sha512-h2z5mrROTxce56S+pnvAV890uu7ls7f1kEvVGJbw1OlFH3/mlJ5bkXu0KRyW94v37zzHPiUd55iLn3DA7TjWpw=="
+      "integrity": "sha512-h2z5mrROTxce56S+pnvAV890uu7ls7f1kEvVGJbw1OlFH3/mlJ5bkXu0KRyW94v37zzHPiUd55iLn3DA7TjWpw==",
+      "optional": true
     },
     "expand-brackets": {
       "version": "2.1.4",
@@ -2643,9 +2647,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.14",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.14.tgz",
-      "integrity": "sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==",
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
       "dev": true
     },
     "lodash.sortby": {
@@ -3216,7 +3220,8 @@
     "printj": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/printj/-/printj-1.1.2.tgz",
-      "integrity": "sha512-zA2SmoLaxZyArQTOPj5LXecR+RagfPSU5Kw1qP+jkWeNlrq+eJZyY2oS68SU1Z/7/myXM4lo9716laOFAVStCQ=="
+      "integrity": "sha512-zA2SmoLaxZyArQTOPj5LXecR+RagfPSU5Kw1qP+jkWeNlrq+eJZyY2oS68SU1Z/7/myXM4lo9716laOFAVStCQ==",
+      "optional": true
     },
     "private": {
       "version": "0.1.8",
@@ -4112,7 +4117,8 @@
     "voc": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/voc/-/voc-1.1.0.tgz",
-      "integrity": "sha512-fthgd8OJLqq8vPcLjElTk6Rcl2e3v5ekcXauImaqEnQqd5yUWKg1+ZOBgS2KTWuVKcuvZMQq4TDptiT1uYddUA=="
+      "integrity": "sha512-fthgd8OJLqq8vPcLjElTk6Rcl2e3v5ekcXauImaqEnQqd5yUWKg1+ZOBgS2KTWuVKcuvZMQq4TDptiT1uYddUA==",
+      "optional": true
     },
     "w3c-hr-time": {
       "version": "1.0.1",