diff --git a/package-lock.json b/package-lock.json
index 9257cc1..006e771 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2696,8 +2696,8 @@
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-      "resolved": "https://npm.strg.at/basic-auth/-/basic-auth-1.1.0.tgz",
-      "integrity": "sha1-RSIe5Cn37h5QNb4/UVM/HN/SmIQ=",
+      "resolved": "https://registry.npmjs.org/basic-auth/-/basic-auth-1.1.0.tgz",
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@@ -3016,7 +3016,7 @@
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       "version": "1.4.0",
-      "resolved": "https://npm.strg.at/colors/-/colors-1.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/colors/-/colors-1.4.0.tgz",
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@@ -3102,7 +3102,7 @@
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-      "integrity": "sha1-jtolLsqrWEDc2XXOuQ2TcMgZ/4c=",
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@@ -3307,18 +3307,6 @@
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-      "requires": {
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-        "mime": "^1.6.0",
-        "minimist": "^1.1.0",
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@@ -3846,9 +3834,9 @@
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-      "resolved": "https://npm.strg.at/eventemitter3/-/eventemitter3-4.0.4.tgz",
-      "integrity": "sha512-rlaVLnVxtxvoyLsQQFBx53YmXHDxRIzzTLbdfxqi4yocpSjAxXwkU0cScM5JgSKMqEhrZpnvQ2D9gjylR0AimQ==",
+      "version": "4.0.7",
+      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.7.tgz",
+      "integrity": "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==",
       "dev": true
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     "exec-sh": {
@@ -4146,9 +4134,9 @@
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-      "version": "1.14.8",
-      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.14.8.tgz",
-      "integrity": "sha512-1x0S9UVJHsQprFcEC/qnNzBLcIxsjAV905f/UkQxbclCsoTWlacCNOpQa/anodLl2uaEKFhfWOvM2Qg77+15zA==",
+      "version": "1.15.2",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.2.tgz",
+      "integrity": "sha512-VQLG33o04KaQ8uYi2tVNbdrWp1QWxNNea+nmIB4EVM28v0hmP17z7aG1+wAkNzVq4KeXTq3221ye5qTJP91JwA==",
       "dev": true
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     "for-in": {
@@ -4909,7 +4897,7 @@
     },
     "http-proxy": {
       "version": "1.18.1",
-      "resolved": "https://npm.strg.at/http-proxy/-/http-proxy-1.18.1.tgz",
+      "resolved": "https://registry.npmjs.org/http-proxy/-/http-proxy-1.18.1.tgz",
       "integrity": "sha512-7mz/721AbnJwIVbnaSv1Cz3Am0ZLT/UBwkC92VlxhXv/k/BBQfM2fXElQNC27BVGr0uwUpplYPQM9LnaBMR5NQ==",
       "dev": true,
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@@ -4947,21 +4935,23 @@
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     "http-server": {
-      "version": "0.12.3",
-      "resolved": "https://npm.strg.at/http-server/-/http-server-0.12.3.tgz",
-      "integrity": "sha512-be0dKG6pni92bRjq0kvExtj/NrrAd28/8fCXkaI/4piTwQMSDSLMhWyW0NI1V+DBI3aa1HMlQu46/HjVLfmugA==",
+      "version": "0.13.0",
+      "resolved": "https://registry.npmjs.org/http-server/-/http-server-0.13.0.tgz",
+      "integrity": "sha512-/MjH9k/y470zbtXzKLkP8vioIVvxRArTkz8f9UX1ztkLZzr6S0hg6BW8h6MBn/HUfwjlTQvIe9DRknorN2u20Q==",
       "dev": true,
       "requires": {
         "basic-auth": "^1.0.3",
         "colors": "^1.4.0",
         "corser": "^2.0.1",
-        "ecstatic": "^3.3.2",
+        "he": "^1.1.0",
         "http-proxy": "^1.18.0",
+        "mime": "^1.6.0",
         "minimist": "^1.2.5",
         "opener": "^1.5.1",
         "portfinder": "^1.0.25",
         "secure-compare": "3.0.1",
-        "union": "~0.5.0"
+        "union": "~0.5.0",
+        "url-join": "^2.0.5"
       }
     },
     "https-proxy-agent": {
@@ -7897,9 +7887,9 @@
       }
     },
     "opener": {
-      "version": "1.5.1",
-      "resolved": "https://npm.strg.at/opener/-/opener-1.5.1.tgz",
-      "integrity": "sha512-goYSy5c2UXE4Ra1xixabeVh1guIX/ZV/YokJksb6q2lubWu6UbvPQ20p542/sFIll1nl8JnCyK9oBaOcCWXwvA==",
+      "version": "1.5.2",
+      "resolved": "https://registry.npmjs.org/opener/-/opener-1.5.2.tgz",
+      "integrity": "sha512-ur5UIdyw5Y7yEj9wLzhqXiy6GZ3Mwx0yGI+5sMn2r0N0v3cKJvUmFH5yPP+WXh9e0xfyzyJX95D8l088DNFj7A==",
       "dev": true
     },
     "optionator": {
@@ -8128,29 +8118,29 @@
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     },
     "portfinder": {
-      "version": "1.0.26",
-      "resolved": "https://npm.strg.at/portfinder/-/portfinder-1.0.26.tgz",
-      "integrity": "sha512-Xi7mKxJHHMI3rIUrnm/jjUgwhbYMkp/XKEcZX3aG4BrumLpq3nmoQMX+ClYnDZnZ/New7IatC1no5RX0zo1vXQ==",
+      "version": "1.0.32",
+      "resolved": "https://registry.npmjs.org/portfinder/-/portfinder-1.0.32.tgz",
+      "integrity": "sha512-on2ZJVVDXRADWE6jnQaX0ioEylzgBpQk8r55NE4wjXW1ZxO+BgDlY6DXwj20i0V8eB4SenDQ00WEaxfiIQPcxg==",
       "dev": true,
       "requires": {
-        "async": "^2.6.2",
-        "debug": "^3.1.1",
-        "mkdirp": "^0.5.1"
+        "async": "^2.6.4",
+        "debug": "^3.2.7",
+        "mkdirp": "^0.5.6"
       },
       "dependencies": {
         "debug": {
-          "version": "3.2.6",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
-          "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
+          "version": "3.2.7",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",
+          "integrity": "sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==",
           "dev": true,
           "requires": {
             "ms": "^2.1.1"
           }
         },
         "ms": {
-          "version": "2.1.2",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
-          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "version": "2.1.3",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+          "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
           "dev": true
         }
       }
@@ -8675,8 +8665,8 @@
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     "secure-compare": {
       "version": "3.0.1",
-      "resolved": "https://npm.strg.at/secure-compare/-/secure-compare-3.0.1.tgz",
-      "integrity": "sha1-8aAymzCLIh+uN7mXTz1XjQypmeM=",
+      "resolved": "https://registry.npmjs.org/secure-compare/-/secure-compare-3.0.1.tgz",
+      "integrity": "sha512-AckIIV90rPDcBcglUwXPF3kg0P0qmPsPXAj6BBEENQE1p5yA1xfmDJzfi1Tappj37Pv2mVbKpL3Z1T+Nn7k1Qw==",
       "dev": true
     },
     "semver": {
@@ -9505,7 +9495,7 @@
     },
     "union": {
       "version": "0.5.0",
-      "resolved": "https://npm.strg.at/union/-/union-0.5.0.tgz",
+      "resolved": "https://registry.npmjs.org/union/-/union-0.5.0.tgz",
       "integrity": "sha512-N6uOhuW6zO95P3Mel2I2zMsbsanvvtgn6jVqJv4vbVcz/JN0OkL9suomjQGmWtxJQXOCqUJvquc1sMeNz/IwlA==",
       "dev": true,
       "requires": {
@@ -9601,7 +9591,7 @@
     "url-join": {
       "version": "2.0.5",
       "resolved": "https://registry.npmjs.org/url-join/-/url-join-2.0.5.tgz",
-      "integrity": "sha1-WvIvGMBSoACkjXuCxenC4v7tpyg=",
+      "integrity": "sha512-c2H1fIgpUdwFRIru9HFno5DT73Ok8hg5oOb5AT3ayIgvCRfxgs2jyt5Slw8kEB7j3QUr6yJmMPDT/odjk7jXow==",
       "dev": true
     },
     "url-parse": {
diff --git a/package.json b/package.json
index dfde0b5..82abd0f 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "eslint": "^6.5.1",
     "eslint-plugin-jest": "^22.20.0",
     "eslint-plugin-node": "^10.0.0",
-    "http-server": "^0.12.3",
+    "http-server": "^0.13.0",
     "jest": "^26.0.1",
     "standard": "^14.3.1"
   },