diff --git a/package-lock.json b/package-lock.json
index 688d64a..8456b61 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2071,9 +2071,9 @@
       "dev": true
     },
     "base64id": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/base64id/-/base64id-1.0.0.tgz",
-      "integrity": "sha1-R2iMuZu2gE8OBtPnY7HDLlfY5rY=",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/base64id/-/base64id-2.0.0.tgz",
+      "integrity": "sha512-lGe34o6EHj9y3Kts9R4ZYs/Gr+6N7MCaMlIFA3F1R2O5/m7K06AxfSeO5530PEERE6/WyEg3lsuyw4GHlPZHog==",
       "dev": true
     },
     "bcrypt-pbkdf": {
@@ -2986,9 +2986,9 @@
       },
       "dependencies": {
         "mime-db": {
-          "version": "1.40.0",
-          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.40.0.tgz",
-          "integrity": "sha512-jYdeOMPy9vnxEqFRRo6ZvTZ8d9oPb+k18PKoYNYUe2stVEBPPwsln/qWzdbmaIvnhZ9v2P+CuecK+fpUfsV2mA==",
+          "version": "1.42.0",
+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.42.0.tgz",
+          "integrity": "sha512-UbfJCR4UAVRNgMpfImz05smAXK7+c+ZntjaA26ANtkXLlOe947Aag5zdIcKQULAiF9Cq4WxBi9jUs5zkA84bYQ==",
           "dev": true
         }
       }
@@ -3963,40 +3963,55 @@
       }
     },
     "engine.io": {
-      "version": "3.3.2",
-      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-3.3.2.tgz",
-      "integrity": "sha512-AsaA9KG7cWPXWHp5FvHdDWY3AMWeZ8x+2pUVLcn71qE5AtAzgGbxuclOytygskw8XGmiQafTmnI9Bix3uihu2w==",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-3.4.0.tgz",
+      "integrity": "sha512-XCyYVWzcHnK5cMz7G4VTu2W7zJS7SM1QkcelghyIk/FmobWBtXE7fwhBusEKvCSqc3bMh8fNFMlUkCKTFRxH2w==",
       "dev": true,
       "requires": {
         "accepts": "~1.3.4",
-        "base64id": "1.0.0",
+        "base64id": "2.0.0",
         "cookie": "0.3.1",
-        "debug": "~3.1.0",
-        "engine.io-parser": "~2.1.0",
-        "ws": "~6.1.0"
+        "debug": "~4.1.0",
+        "engine.io-parser": "~2.2.0",
+        "ws": "^7.1.2"
       },
       "dependencies": {
         "debug": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
           "dev": true,
           "requires": {
-            "ms": "2.0.0"
+            "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==",
+          "dev": true
+        },
+        "ws": {
+          "version": "7.1.2",
+          "resolved": "https://registry.npmjs.org/ws/-/ws-7.1.2.tgz",
+          "integrity": "sha512-gftXq3XI81cJCgkUiAVixA0raD9IVmXqsylCrjRygw4+UOOGzPoxnQ6r/CnVL9i+mDncJo94tSkyrtuuQVBmrg==",
+          "dev": true,
+          "requires": {
+            "async-limiter": "^1.0.0"
           }
         }
       }
     },
     "engine.io-client": {
-      "version": "3.3.2",
-      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-3.3.2.tgz",
-      "integrity": "sha512-y0CPINnhMvPuwtqXfsGuWE8BB66+B6wTtCofQDRecMQPYX3MYUZXFNKDhdrSe3EVjgOu4V3rxdeqN/Tr91IgbQ==",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-3.4.0.tgz",
+      "integrity": "sha512-a4J5QO2k99CM2a0b12IznnyQndoEvtA4UAldhGzKqnHf42I3Qs2W5SPnDvatZRcMaNZs4IevVicBPayxYt6FwA==",
       "dev": true,
       "requires": {
         "component-emitter": "1.2.1",
         "component-inherit": "0.0.3",
-        "debug": "~3.1.0",
-        "engine.io-parser": "~2.1.1",
+        "debug": "~4.1.0",
+        "engine.io-parser": "~2.2.0",
         "has-cors": "1.1.0",
         "indexof": "0.0.1",
         "parseqs": "0.0.5",
@@ -4007,20 +4022,26 @@
       },
       "dependencies": {
         "debug": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
           "dev": true,
           "requires": {
-            "ms": "2.0.0"
+            "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==",
+          "dev": true
         }
       }
     },
     "engine.io-parser": {
-      "version": "2.1.3",
-      "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-2.1.3.tgz",
-      "integrity": "sha512-6HXPre2O4Houl7c4g7Ic/XzPnHBvaEmN90vtRO9uLmwtRqQmTOw0QMevL1TOfL2Cpu1VzsaTmMotQgMdkzGkVA==",
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-2.2.0.tgz",
+      "integrity": "sha512-6I3qD9iUxotsC5HEMuuGsKA0cXerGz+4uGcXQEkfBidgKf0amsjrrtwcbwK/nzpZBxclXlV7gGl9dgWvu4LF6w==",
       "dev": true,
       "requires": {
         "after": "0.8.2",
@@ -4621,9 +4642,9 @@
       "dev": true
     },
     "eventemitter3": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-3.1.2.tgz",
-      "integrity": "sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.0.tgz",
+      "integrity": "sha512-qerSRB0p+UDEssxTtm6EDKcE7W4OaoisfIMl4CngyEhjpYglocpNg6UEqCvemdGhosAsg4sO2dXJOdyBifPGCg==",
       "dev": true
     },
     "events": {
@@ -5190,12 +5211,12 @@
       }
     },
     "follow-redirects": {
-      "version": "1.7.0",
-      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.7.0.tgz",
-      "integrity": "sha512-m/pZQy4Gj287eNy94nivy5wchN3Kp+Q5WgUPNy5lJSZ3sgkVKSYV/ZChMAQVIgx1SqfZ2zBZtPA2YlXIWxxJOQ==",
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.9.0.tgz",
+      "integrity": "sha512-CRcPzsSIbXyVDl0QI01muNDu69S8trU4jArW9LpOt2WtC6LyUJetcIrmfHsRBx7/Jb6GHJUiuqyYxPooFfNt6A==",
       "dev": true,
       "requires": {
-        "debug": "^3.2.6"
+        "debug": "^3.0.0"
       },
       "dependencies": {
         "debug": {
@@ -6481,12 +6502,12 @@
       }
     },
     "http-proxy": {
-      "version": "1.17.0",
-      "resolved": "https://registry.npmjs.org/http-proxy/-/http-proxy-1.17.0.tgz",
-      "integrity": "sha512-Taqn+3nNvYRfJ3bGvKfBSRwy1v6eePlm3oc/aWVxZp57DQr5Eq3xhKJi7Z4hZpS8PC3H4qI+Yly5EmFacGuA/g==",
+      "version": "1.18.0",
+      "resolved": "https://registry.npmjs.org/http-proxy/-/http-proxy-1.18.0.tgz",
+      "integrity": "sha512-84I2iJM/n1d4Hdgc6y2+qY5mDaz2PUVjlg9znE9byl+q0uC3DeByqBGReQu5tpLK0TAqTIXScRUV+dg7+bUPpQ==",
       "dev": true,
       "requires": {
-        "eventemitter3": "^3.0.0",
+        "eventemitter3": "^4.0.0",
         "follow-redirects": "^1.0.0",
         "requires-port": "^1.0.0"
       }
@@ -8102,9 +8123,9 @@
       }
     },
     "minipass": {
-      "version": "2.3.5",
-      "resolved": "https://registry.npmjs.org/minipass/-/minipass-2.3.5.tgz",
-      "integrity": "sha512-Gi1W4k059gyRbyVUZQ4mEqLm0YIUiGYfvxhF6SIlk3ui1WVxMTGfGdQ2SInh3PDrRTVvPKgULkpJtT4RH10+VA==",
+      "version": "2.8.6",
+      "resolved": "https://registry.npmjs.org/minipass/-/minipass-2.8.6.tgz",
+      "integrity": "sha512-lFG7d6g3+/UaFDCOtqPiKAC9zngWWsQZl1g5q6gaONqrjq61SX2xFqXMleQiFVyDpYwa018E9hmlAFY22PCb+A==",
       "dev": true,
       "requires": {
         "safe-buffer": "^5.1.2",
@@ -8112,9 +8133,9 @@
       },
       "dependencies": {
         "yallist": {
-          "version": "3.0.3",
-          "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.3.tgz",
-          "integrity": "sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==",
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.0.tgz",
+          "integrity": "sha512-6gpP93MR+VOOehKbCPchro3wFZNSNmek8A2kbkOAZLIZAYx1KP/zAqwO0sOHi3xJEb+UBz8NaYt/17UNit1Q9w==",
           "dev": true
         }
       }
@@ -8194,9 +8215,9 @@
       "dev": true
     },
     "mustache": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/mustache/-/mustache-3.0.1.tgz",
-      "integrity": "sha512-jFI/4UVRsRYdUbuDTKT7KzfOp7FiD5WzYmmwNwXyUVypC0xjoTL78Fqc0jHUPIvvGD+6DQSPHIt1NE7D1ArsqA==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/mustache/-/mustache-3.1.0.tgz",
+      "integrity": "sha512-3Bxq1R5LBZp7fbFPZzFe5WN4s0q3+gxZaZuZVY+QctYJiCiVgXHOTIC0/HgZuOPFt/6BQcx5u0H2CUOxT/RoGQ==",
       "dev": true
     },
     "mute-stream": {
@@ -8340,9 +8361,9 @@
       "dev": true
     },
     "node-notifier": {
-      "version": "5.4.0",
-      "resolved": "https://registry.npmjs.org/node-notifier/-/node-notifier-5.4.0.tgz",
-      "integrity": "sha512-SUDEb+o71XR5lXSTyivXd9J7fCloE3SyP4lSgt3lU2oSANiox+SxlNRGPjDKrwU1YN3ix2KN/VGGCg0t01rttQ==",
+      "version": "5.4.3",
+      "resolved": "https://registry.npmjs.org/node-notifier/-/node-notifier-5.4.3.tgz",
+      "integrity": "sha512-M4UBGcs4jeOK9CjTsYwkvH6/MzuUmGCyTW+kCY7uO+1ZVr0+FHGdPdIf5CCLqAaxnRrWidyoQlNkMIIVwbKB8Q==",
       "dev": true,
       "requires": {
         "growly": "^1.3.0",
@@ -9233,9 +9254,9 @@
       }
     },
     "printf": {
-      "version": "0.5.1",
-      "resolved": "https://registry.npmjs.org/printf/-/printf-0.5.1.tgz",
-      "integrity": "sha512-UaE/jO0hNsrvPGQEb4LyNzcrJv9Z00tsreBduOSxMtrebvoUhxiEJ4YCHX8YHf6akwfKsC2Gyv5zv47UXhMiLg==",
+      "version": "0.5.2",
+      "resolved": "https://registry.npmjs.org/printf/-/printf-0.5.2.tgz",
+      "integrity": "sha512-Hn0UuWqTRd94HiCJoiCNGZTnSyXJdIF3t4/4I293hezIzyH4pQ3ai4TlH/SmRCiMvR5aNMxSYWshjQWWW6J8MQ==",
       "dev": true
     },
     "private": {
@@ -10373,17 +10394,17 @@
       }
     },
     "socket.io": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-2.2.0.tgz",
-      "integrity": "sha512-wxXrIuZ8AILcn+f1B4ez4hJTPG24iNgxBBDaJfT6MsyOhVYiTXWexGoPkd87ktJG8kQEcL/NBvRi64+9k4Kc0w==",
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-2.3.0.tgz",
+      "integrity": "sha512-2A892lrj0GcgR/9Qk81EaY2gYhCBxurV0PfmmESO6p27QPrUK1J3zdns+5QPqvUYK2q657nSj0guoIil9+7eFg==",
       "dev": true,
       "requires": {
         "debug": "~4.1.0",
-        "engine.io": "~3.3.1",
+        "engine.io": "~3.4.0",
         "has-binary2": "~1.0.2",
         "socket.io-adapter": "~1.1.0",
-        "socket.io-client": "2.2.0",
-        "socket.io-parser": "~3.3.0"
+        "socket.io-client": "2.3.0",
+        "socket.io-parser": "~3.4.0"
       },
       "dependencies": {
         "debug": {
@@ -10410,17 +10431,17 @@
       "dev": true
     },
     "socket.io-client": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-2.2.0.tgz",
-      "integrity": "sha512-56ZrkTDbdTLmBIyfFYesgOxsjcLnwAKoN4CiPyTVkMQj3zTUh0QAx3GbvIvLpFEOvQWu92yyWICxB0u7wkVbYA==",
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-2.3.0.tgz",
+      "integrity": "sha512-cEQQf24gET3rfhxZ2jJ5xzAOo/xhZwK+mOqtGRg5IowZsMgwvHwnf/mCRapAAkadhM26y+iydgwsXGObBB5ZdA==",
       "dev": true,
       "requires": {
         "backo2": "1.0.2",
         "base64-arraybuffer": "0.1.5",
         "component-bind": "1.0.0",
         "component-emitter": "1.2.1",
-        "debug": "~3.1.0",
-        "engine.io-client": "~3.3.1",
+        "debug": "~4.1.0",
+        "engine.io-client": "~3.4.0",
         "has-binary2": "~1.0.2",
         "has-cors": "1.1.0",
         "indexof": "0.0.1",
@@ -10432,34 +10453,12 @@
       },
       "dependencies": {
         "debug": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
           "dev": true,
           "requires": {
-            "ms": "2.0.0"
-          }
-        }
-      }
-    },
-    "socket.io-parser": {
-      "version": "3.3.0",
-      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.3.0.tgz",
-      "integrity": "sha512-hczmV6bDgdaEbVqhAeVMM/jfUfzuEZHsQg6eOmLgJht6G3mPKMxYm75w2+qhAQZ+4X+1+ATZ+QFKeOZD5riHng==",
-      "dev": true,
-      "requires": {
-        "component-emitter": "1.2.1",
-        "debug": "~3.1.0",
-        "isarray": "2.0.1"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
-          "dev": true,
-          "requires": {
-            "ms": "2.0.0"
+            "ms": "^2.1.1"
           }
         },
         "isarray": {
@@ -10467,6 +10466,74 @@
           "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
           "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4=",
           "dev": true
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        },
+        "socket.io-parser": {
+          "version": "3.3.0",
+          "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.3.0.tgz",
+          "integrity": "sha512-hczmV6bDgdaEbVqhAeVMM/jfUfzuEZHsQg6eOmLgJht6G3mPKMxYm75w2+qhAQZ+4X+1+ATZ+QFKeOZD5riHng==",
+          "dev": true,
+          "requires": {
+            "component-emitter": "1.2.1",
+            "debug": "~3.1.0",
+            "isarray": "2.0.1"
+          },
+          "dependencies": {
+            "debug": {
+              "version": "3.1.0",
+              "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+              "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+              "dev": true,
+              "requires": {
+                "ms": "2.0.0"
+              }
+            },
+            "ms": {
+              "version": "2.0.0",
+              "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+              "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
+              "dev": true
+            }
+          }
+        }
+      }
+    },
+    "socket.io-parser": {
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.4.0.tgz",
+      "integrity": "sha512-/G/VOI+3DBp0+DJKW4KesGnQkQPFmUCbA/oO2QGT6CWxU7hLGWqU3tyuzeSK/dqcyeHsQg1vTe9jiZI8GU9SCQ==",
+      "dev": true,
+      "requires": {
+        "component-emitter": "1.2.1",
+        "debug": "~4.1.0",
+        "isarray": "2.0.1"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        },
+        "isarray": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
+          "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4=",
+          "dev": true
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
         }
       }
     },
@@ -11084,9 +11151,9 @@
       }
     },
     "testem": {
-      "version": "2.17.0",
-      "resolved": "https://registry.npmjs.org/testem/-/testem-2.17.0.tgz",
-      "integrity": "sha512-PLkIlT523w5rTJPWwR4TL1EiAEa941ECV7d4pMqsB0YdnH+sCTz0loWMKCUSdhR+VijveAZ6anE/JHehE7KqMQ==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/testem/-/testem-3.0.0.tgz",
+      "integrity": "sha512-zNLBRvGYDiF2NjwrVj3QPRDdl9JbGtjhkCdCqHglffW5kXU720IRp2udELqMo2XrlS/VzcKPbqXAXjT98j1Oow==",
       "dev": true,
       "requires": {
         "backbone": "^1.1.2",
diff --git a/package.json b/package.json
index 3302450..839112c 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "jsdoc": "^3.6.3",
     "nyc": "^14.1.1",
     "sinon": "^7.3.2",
-    "testem": "^2.17.0",
+    "testem": "^3.0.0",
     "webpack": "^4.39.1",
     "webpack-bundle-analyzer": "^3.3.2",
     "webpack-cli": "^3.3.6",