diff --git a/package.json b/package.json
index 12202477..8ccabe2e 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
   "devDependencies": {
     "istanbul": "~0.4.3",
     "jshint": "~2.9.4",
-    "mocha": "~3.4.1",
+    "mocha": "3.5.3",
     "moment": "2.22.1",
     "nock": "9.2.6",
     "redis": "2.8.0",
diff --git a/yarn.lock b/yarn.lock
index 35bd4f74..b1e64aa8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -509,11 +509,11 @@ debug@2.2.0:
   dependencies:
     ms "0.7.1"
 
-debug@2.6.0:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.0.tgz#bc596bcabe7617f11d9fa15361eded5608b8499b"
+debug@2.6.8:
+  version "2.6.8"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
   dependencies:
-    ms "0.7.2"
+    ms "2.0.0"
 
 debug@2.6.9, debug@^2.1.2, debug@^2.2.0:
   version "2.6.9"
@@ -1033,6 +1033,10 @@ hawk@~6.0.2:
     hoek "4.x.x"
     sntp "2.x.x"
 
+he@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/he/-/he-1.1.1.tgz#93410fd21b009735151f8868c2f271f3427e23fd"
+
 hiredis@~0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/hiredis/-/hiredis-0.5.0.tgz#db03a98becd7003d13c260043aceecfacdf59b87"
@@ -1535,17 +1539,18 @@ mkdirp@0.5.1, mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdi
   dependencies:
     minimist "0.0.8"
 
-mocha@~3.4.1:
-  version "3.4.2"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-3.4.2.tgz#d0ef4d332126dbf18d0d640c9b382dd48be97594"
+mocha@3.5.3:
+  version "3.5.3"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-3.5.3.tgz#1e0480fe36d2da5858d1eb6acc38418b26eaa20d"
   dependencies:
     browser-stdout "1.3.0"
     commander "2.9.0"
-    debug "2.6.0"
+    debug "2.6.8"
     diff "3.2.0"
     escape-string-regexp "1.0.5"
     glob "7.1.1"
     growl "1.9.2"
+    he "1.1.1"
     json3 "3.3.2"
     lodash.create "3.1.1"
     mkdirp "0.5.1"
@@ -1559,10 +1564,6 @@ ms@0.7.1:
   version "0.7.1"
   resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"
 
-ms@0.7.2:
-  version "0.7.2"
-  resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.2.tgz#ae25cf2512b3885a1d95d7f037868d8431124765"
-
 ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"