diff --git a/package-lock.json b/package-lock.json
index cc5389e..0de2fec 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1133,9 +1133,9 @@
       "dev": true
     },
     "@types/node": {
-      "version": "11.9.4",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-11.9.4.tgz",
-      "integrity": "sha512-Zl8dGvAcEmadgs1tmSPcvwzO1YRsz38bVJQvH1RvRqSR9/5n61Q1ktcDL0ht3FXWR+ZpVmXVwN1LuH4Ax23NsA==",
+      "version": "11.9.6",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-11.9.6.tgz",
+      "integrity": "sha512-4hS2K4gwo9/aXIcoYxCtHpdgd8XUeDmo1siRCAH3RziXB65JlPqUFMtfy9VPj+og7dp3w1TFjGwYga4e0m9GwA==",
       "dev": true
     },
     "acorn": {
@@ -1763,7 +1763,7 @@
       "dependencies": {
         "minimist": {
           "version": "1.2.0",
-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
           "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
           "dev": true
         }
@@ -2777,12 +2777,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -2797,17 +2799,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -2924,7 +2929,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -2936,6 +2942,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -2950,6 +2957,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -2957,12 +2965,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -2981,6 +2991,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -3061,7 +3072,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -3073,6 +3085,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -3194,6 +3207,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -6106,20 +6120,20 @@
       }
     },
     "rollup": {
-      "version": "1.2.2",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-1.2.2.tgz",
-      "integrity": "sha512-fsn5KJcfSuejjrv8GV7kZNciElqxyzZdUq8rA3e528JsR3ccxrWwoptyUY8GGLlgMFAQMB3dZW8nWF2I1/xrZA==",
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-1.4.0.tgz",
+      "integrity": "sha512-E5HP4rgvAqkXQNYfNHgCDnX5HDHwAPDLUVSNp8iTmT49vY34G0DxEfhjPWnqnFi7v0vQtDGkKl2hvLfmsMvmcA==",
       "dev": true,
       "requires": {
         "@types/estree": "0.0.39",
-        "@types/node": "*",
-        "acorn": "^6.1.0"
+        "@types/node": "^11.9.5",
+        "acorn": "^6.1.1"
       },
       "dependencies": {
         "acorn": {
-          "version": "6.1.0",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.0.tgz",
-          "integrity": "sha512-MW/FjM+IvU9CgBzjO3UIPCE2pyEwUsoFl+VGdczOPEdxfGFjuKny/gN54mOuX7Qxmb9Rg9MCn2oKiSUeW+pjrw==",
+          "version": "6.1.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz",
+          "integrity": "sha512-jPTiwtOxaHNaAPg/dmrJ/beuzLRnXtB0kQPQ8JpotKJgTB6rX6c8mlf315941pyjBSaPg8NHXS9fhP4u17DpGA==",
           "dev": true
         }
       }