diff --git a/package-lock.json b/package-lock.json
index 369b110..337c66c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -347,9 +347,9 @@
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-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.5.3.tgz",
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+      "version": "5.7.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
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@@ -621,7 +621,7 @@
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-          "resolved": "http://registry.npmjs.org/util/-/util-0.10.3.tgz",
+          "resolved": "https://registry.npmjs.org/util/-/util-0.10.3.tgz",
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@@ -1372,7 +1372,7 @@
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-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
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@@ -2697,7 +2697,8 @@
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-          "dev": true
+          "dev": true,
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@@ -2740,7 +2741,8 @@
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-          "dev": true
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@@ -2751,7 +2753,8 @@
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-          "dev": true
+          "dev": true,
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@@ -2868,7 +2871,8 @@
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-          "dev": true
+          "dev": true,
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@@ -2880,6 +2884,7 @@
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@@ -2902,12 +2907,14 @@
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-          "dev": true
+          "dev": true,
+          "optional": true
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           "bundled": true,
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@@ -2926,6 +2933,7 @@
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           "dev": true,
+          "optional": true,
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@@ -3006,7 +3014,8 @@
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-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -3018,6 +3027,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -3103,7 +3113,8 @@
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-          "dev": true
+          "dev": true,
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@@ -3139,6 +3150,7 @@
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           "bundled": true,
           "dev": true,
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@@ -3158,6 +3170,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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@@ -3201,12 +3214,14 @@
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-          "dev": true
+          "dev": true,
+          "optional": true
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           "version": "3.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -3295,7 +3310,7 @@
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-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
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@@ -3969,7 +3984,7 @@
       "dependencies": {
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-          "resolved": "http://registry.npmjs.org/commander/-/commander-2.15.1.tgz",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.15.1.tgz",
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@@ -5036,7 +5051,7 @@
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-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
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@@ -5586,7 +5601,7 @@
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-      "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
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@@ -7163,7 +7178,7 @@
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-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
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@@ -7335,14 +7350,6 @@
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-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
-          "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==",
-          "dev": true
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@@ -7365,12 +7372,6 @@
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-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
-          "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==",
-          "dev": true
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@@ -7501,7 +7502,7 @@
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-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
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@@ -7625,7 +7626,7 @@
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-      "resolved": "http://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
       "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
       "dev": true,
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