diff --git a/package-lock.json b/package-lock.json
index c551dec..b6db6e2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5560,7 +5560,8 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -5578,11 +5579,13 @@
         },
         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -5595,15 +5598,18 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -5706,7 +5712,8 @@
         },
         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -5716,6 +5723,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -5728,17 +5736,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -5755,6 +5766,7 @@
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -5827,7 +5839,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -5837,6 +5850,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -5912,7 +5926,8 @@
         },
         "safe-buffer": {
           "version": "5.1.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -5942,6 +5957,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -5959,6 +5975,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -5997,11 +6014,13 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
       }
     },
@@ -6372,6 +6391,10 @@
       "integrity": "sha1-Rm07hlE/XUkRKknSVwCrJzAUkVM=",
       "dev": true
     },
+    "heatmapjs": {
+      "version": "git+https://github.com/JonathanWi/heatmap.js.git#df4cae147874a2b85700a78fb3a5caa27ddb3414",
+      "from": "git+https://github.com/JonathanWi/heatmap.js.git#df4cae147874a2b85700a78fb3a5caa27ddb3414"
+    },
     "history": {
       "version": "4.9.0",
       "resolved": "https://registry.npmjs.org/history/-/history-4.9.0.tgz",
@@ -7736,20 +7759,42 @@
       }
     },
     "jsonwebtoken": {
-      "version": "8.5.1",
-      "resolved": "https://registry.npmjs.org/jsonwebtoken/-/jsonwebtoken-8.5.1.tgz",
-      "integrity": "sha512-XjwVfRS6jTMsqYs0EsuJ4LGxXV14zQybNd4L2r0UvbVnSF9Af8x7p5MzbJ90Ioz/9TI41/hTCvznF/loiSzn8w==",
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/jsonwebtoken/-/jsonwebtoken-9.0.0.tgz",
+      "integrity": "sha512-tuGfYXxkQGDPnLJ7SibiQgVgeDgfbPq2k2ICcbgqW8WxWLBAxKQM/ZCu/IT8SOSwmaYl4dpTFCW5xZv7YbbWUw==",
       "requires": {
         "jws": "^3.2.2",
-        "lodash.includes": "^4.3.0",
-        "lodash.isboolean": "^3.0.3",
-        "lodash.isinteger": "^4.0.4",
-        "lodash.isnumber": "^3.0.3",
-        "lodash.isplainobject": "^4.0.6",
-        "lodash.isstring": "^4.0.1",
-        "lodash.once": "^4.0.0",
+        "lodash": "^4.17.21",
         "ms": "^2.1.1",
-        "semver": "^5.6.0"
+        "semver": "^7.3.8"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.21",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+          "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+        },
+        "lru-cache": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
+          "integrity": "sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==",
+          "requires": {
+            "yallist": "^4.0.0"
+          }
+        },
+        "semver": {
+          "version": "7.3.8",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.8.tgz",
+          "integrity": "sha512-NB1ctGL5rlHrPJtFDVIVzTyQylMLu9N9VICA6HSFJo8MCGVTMW6gfpicwKmmK/dAjTOrqu5l63JJOpDSrAis3A==",
+          "requires": {
+            "lru-cache": "^6.0.0"
+          }
+        },
+        "yallist": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
+          "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A=="
+        }
       }
     },
     "jsprim": {
@@ -10369,12 +10414,6 @@
       "requires": {
         "classnames": "^2.1.2",
         "heatmapjs": "git+https://github.com/JonathanWi/heatmap.js.git#df4cae147874a2b85700a78fb3a5caa27ddb3414"
-      },
-      "dependencies": {
-        "heatmapjs": {
-          "version": "git+https://github.com/JonathanWi/heatmap.js.git#df4cae147874a2b85700a78fb3a5caa27ddb3414",
-          "from": "git+https://github.com/JonathanWi/heatmap.js.git"
-        }
       }
     },
     "react-hot-loader": {
diff --git a/package.json b/package.json
index 40716f0..3bfcaec 100644
--- a/package.json
+++ b/package.json
@@ -91,7 +91,7 @@
     "express-jwt": "^5.3.1",
     "fast-safe-stringify": "2.0.6",
     "jest": "^24.9.0",
-    "jsonwebtoken": "^8.5.1",
+    "jsonwebtoken": "^9.0.0",
     "mongodb": "^3.3.2",
     "multer": "^1.4.2",
     "react-heatmap": "^1.0.6",