diff --git a/package-lock.json b/package-lock.json
index 91663674f..fa37210ca 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -483,7 +483,8 @@
     "async-limiter": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
-      "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ=="
+      "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ==",
+      "dev": true
     },
     "asynckit": {
       "version": "0.4.0",
@@ -1973,6 +1974,7 @@
       "requires": {
         "anymatch": "^1.3.0",
         "async-each": "^1.0.0",
+        "fsevents": "^1.0.0",
         "glob-parent": "^2.0.0",
         "inherits": "^2.0.1",
         "is-binary-path": "^1.0.0",
@@ -2932,9 +2934,9 @@
       }
     },
     "engine.io-client": {
-      "version": "3.4.4",
-      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-3.4.4.tgz",
-      "integrity": "sha512-iU4CRr38Fecj8HoZEnFtm2EiKGbYZcPn3cHxqNGl/tmdWRf60KhK+9vE0JeSjgnlS/0oynEfLgKbT9ALpim0sQ==",
+      "version": "3.5.0",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-3.5.0.tgz",
+      "integrity": "sha512-12wPRfMrugVw/DNyJk34GQ5vIVArEcVMXWugQGGuw2XxUSztFNmJggZmv8IZlLyEdnpO1QB9LkcjeWewO2vxtA==",
       "requires": {
         "component-emitter": "~1.3.0",
         "component-inherit": "0.0.3",
@@ -2944,7 +2946,7 @@
         "indexof": "0.0.1",
         "parseqs": "0.0.6",
         "parseuri": "0.0.6",
-        "ws": "~6.1.0",
+        "ws": "~7.4.2",
         "xmlhttprequest-ssl": "~1.5.4",
         "yeast": "0.1.2"
       }
@@ -4152,6 +4154,13 @@
       "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
       "dev": true
     },
+    "fsevents": {
+      "version": "1.2.13",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-1.2.13.tgz",
+      "integrity": "sha512-oWb1Z6mkHIskLzEJ/XWX0srkpkTQ7vaopMQkyaEIoq0fmtFVxOthb8cCxeT+p3ynTdkk/RZwbgG4brR5BeWECw==",
+      "dev": true,
+      "optional": true
+    },
     "fstream": {
       "version": "1.0.12",
       "resolved": "https://registry.npmjs.org/fstream/-/fstream-1.0.12.tgz",
@@ -9189,6 +9198,60 @@
             "ms": "^2.1.1"
           }
         },
+        "engine.io-client": {
+          "version": "3.4.4",
+          "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-3.4.4.tgz",
+          "integrity": "sha512-iU4CRr38Fecj8HoZEnFtm2EiKGbYZcPn3cHxqNGl/tmdWRf60KhK+9vE0JeSjgnlS/0oynEfLgKbT9ALpim0sQ==",
+          "dev": true,
+          "requires": {
+            "component-emitter": "~1.3.0",
+            "component-inherit": "0.0.3",
+            "debug": "~3.1.0",
+            "engine.io-parser": "~2.2.0",
+            "has-cors": "1.1.0",
+            "indexof": "0.0.1",
+            "parseqs": "0.0.6",
+            "parseuri": "0.0.6",
+            "ws": "~6.1.0",
+            "xmlhttprequest-ssl": "~1.5.4",
+            "yeast": "0.1.2"
+          },
+          "dependencies": {
+            "component-emitter": {
+              "version": "1.3.0",
+              "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.3.0.tgz",
+              "integrity": "sha512-Rd3se6QB+sO1TwqZjscQrurpEPIfO0/yYnSin6Q/rD3mOutHvUrCAhJub3r90uNb+SESBuE0QYoB90YdfatsRg==",
+              "dev": true
+            },
+            "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
+            },
+            "parseqs": {
+              "version": "0.0.6",
+              "resolved": "https://registry.npmjs.org/parseqs/-/parseqs-0.0.6.tgz",
+              "integrity": "sha512-jeAGzMDbfSHHA091hr0r31eYfTig+29g3GKKE/PPbEQ65X0lmMwlEoqmhzu0iztID5uJpZsFlUPDP8ThPL7M8w==",
+              "dev": true
+            },
+            "parseuri": {
+              "version": "0.0.6",
+              "resolved": "https://registry.npmjs.org/parseuri/-/parseuri-0.0.6.tgz",
+              "integrity": "sha512-AUjen8sAkGgao7UyCX6Ahv0gIK2fABKmYjvP4xmy5JaKvcbTRueIqIPHLAfq30xJddqSE033IOMUSOMCcK3Sow==",
+              "dev": true
+            }
+          }
+        },
         "ms": {
           "version": "2.1.2",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
@@ -9212,6 +9275,15 @@
           "requires": {
             "better-assert": "~1.0.0"
           }
+        },
+        "ws": {
+          "version": "6.1.4",
+          "resolved": "https://registry.npmjs.org/ws/-/ws-6.1.4.tgz",
+          "integrity": "sha512-eqZfL+NE/YQc1/ZynhojeV8q+H050oR8AZ2uIev7RU10svA9ZnJUddHcOUZTJLinZ9yEfdA2kSATS2qZK5fhJA==",
+          "dev": true,
+          "requires": {
+            "async-limiter": "~1.0.0"
+          }
         }
       }
     },
@@ -10922,12 +10994,9 @@
       }
     },
     "ws": {
-      "version": "6.1.4",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-6.1.4.tgz",
-      "integrity": "sha512-eqZfL+NE/YQc1/ZynhojeV8q+H050oR8AZ2uIev7RU10svA9ZnJUddHcOUZTJLinZ9yEfdA2kSATS2qZK5fhJA==",
-      "requires": {
-        "async-limiter": "~1.0.0"
-      }
+      "version": "7.4.2",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.2.tgz",
+      "integrity": "sha512-T4tewALS3+qsrpGI/8dqNMLIVdq/g/85U98HPMa6F0m6xTbvhXU6RCQLqPH3+SlomNV/LdY6RXEbBpMH6EOJnA=="
     },
     "xml-escape": {
       "version": "1.0.0",
diff --git a/package.json b/package.json
index 2d8b0a667..52b228885 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "component-bind": "1.0.0",
     "component-emitter": "~1.3.0",
     "debug": "~3.1.0",
-    "engine.io-client": "~3.4.0",
+    "engine.io-client": "~3.5.0",
     "has-binary2": "~1.0.2",
     "indexof": "0.0.1",
     "parseqs": "0.0.6",