diff --git a/package-lock.json b/package-lock.json
index d6f83b1..b116c3b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -63,6 +63,7 @@
       "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
+      "optional": true,
       "requires": {
         "kind-of": "3.2.2",
         "longest": "1.0.1",
@@ -2118,7 +2119,8 @@
       "version": "1.1.5",
       "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-1.1.5.tgz",
       "integrity": "sha1-Hzsm72E7IUuIy8ojzGwB2Hlh7sw=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "is-builtin-module": {
       "version": "1.0.0",
@@ -2435,6 +2437,7 @@
       "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
       "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
       "dev": true,
+      "optional": true,
       "requires": {
         "is-buffer": "1.1.5"
       }
@@ -2585,7 +2588,8 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "loose-envify": {
       "version": "1.3.1",
@@ -3644,7 +3648,8 @@
       "version": "1.6.1",
       "resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz",
       "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "request": {
       "version": "2.81.0",
@@ -3751,7 +3756,7 @@
     "rgb2hex": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/rgb2hex/-/rgb2hex-0.1.0.tgz",
-      "integrity": "sha1-zNVfhgrgxcTqN1BLlY5ELY0SMls=",
+      "integrity": "sha512-JelbSahz+qKCubeNlTBSHk6rks2GEYnS+ky8LCjahCad4dzGc28nXZbL6Fpqs1s4wminzmvZpqxV/8QvnShCIQ==",
       "dev": true
     },
     "right-align": {