diff --git a/package-lock.json b/package-lock.json
index f8b59ef..6fdff4a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2120,6 +2120,12 @@
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-          "integrity": "sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs=",
-          "dev": true
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+        "union": "^0.5.0"
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@@ -5784,13 +5762,13 @@
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-      "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
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@@ -5800,7 +5778,7 @@
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@@ -6078,20 +6056,53 @@
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-        "async": "^1.5.2",
-        "debug": "^2.2.0",
-        "mkdirp": "0.5.x"
+        "async": "^2.6.4",
+        "debug": "^3.2.7",
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-          "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
-          "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=",
+          "version": "2.6.4",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
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+          "requires": {
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+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",
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+          "dev": true,
+          "requires": {
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+        "minimist": {
+          "version": "1.2.7",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.7.tgz",
+          "integrity": "sha512-bzfL1YUZsP41gmu/qjrEk0Q6i2ix/cVeAhbCbqH9u3zYutS1cLg00qhrD0M2MVdCcx4Sc0UpP2eBWo9rotpq6g==",
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+        },
+        "mkdirp": {
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+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.6.tgz",
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+          "dev": true,
+          "requires": {
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+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
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@@ -6496,9 +6507,9 @@
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-      "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
-      "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA=="
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.3.tgz",
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@@ -6898,7 +6909,7 @@
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@@ -8061,20 +8072,12 @@
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-      "resolved": "https://registry.npmjs.org/union/-/union-0.4.6.tgz",
-      "integrity": "sha1-GY+9rrolTniLDvy2MLwR8kopWeA=",
+      "version": "0.5.0",
+      "resolved": "https://registry.npmjs.org/union/-/union-0.5.0.tgz",
+      "integrity": "sha512-N6uOhuW6zO95P3Mel2I2zMsbsanvvtgn6jVqJv4vbVcz/JN0OkL9suomjQGmWtxJQXOCqUJvquc1sMeNz/IwlA==",
       "dev": true,
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-          "resolved": "https://registry.npmjs.org/qs/-/qs-2.3.3.tgz",
-          "integrity": "sha1-6eha2+ddoLvkyOBHaghikPhjtAQ=",
-          "dev": true
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+        "qs": "^6.4.0"
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@@ -8224,7 +8227,7 @@
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-      "integrity": "sha1-WvIvGMBSoACkjXuCxenC4v7tpyg=",
+      "integrity": "sha512-c2H1fIgpUdwFRIru9HFno5DT73Ok8hg5oOb5AT3ayIgvCRfxgs2jyt5Slw8kEB7j3QUr6yJmMPDT/odjk7jXow==",
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diff --git a/package.json b/package.json
index 1c09c23..c9fe81e 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
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     "extract-text-webpack-plugin": "^4.0.0-beta.0",
     "flow-bin": "^0.69.0",
-    "http-server": "^0.11.1",
+    "http-server": "^0.11.2",
     "mocha": "^5.0.5",
     "power-assert": "^1.5.0",
     "webpack-cli": "^3.3.2"