diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index 5ba0408..d0c82a5 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
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@@ -5844,14 +5845,6 @@
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diff --git a/package-lock.json b/package-lock.json
index f13006d..fc243e9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -867,7 +867,7 @@
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-      "integrity": "sha1-vgPfjMPineTSxd9lASY/H6RZXpo="
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-        "ms": "^2.0.0",
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+        "lodash": "^4.17.21",
+        "ms": "^2.1.1",
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+        },
+        "semver": {
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+          "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.8.tgz",
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@@ -3531,11 +3542,6 @@
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@@ -5875,14 +5876,6 @@
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+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
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diff --git a/package.json b/package.json
index 7a0d54f..63ab90b 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
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     "cookie-parser": "^1.4.3",
     "express": "^4.14.0",
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+    "jsonwebtoken": "^9.0.0",
     "mongoose": "^4.5.3",
     "pug": "^3.0.1",
     "socket.io": "^1.7.2",