diff --git a/package.json b/package.json
index 887e5dc2..421d662e 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "chai": "3.5.0",
     "eslint": "3.19.0",
     "istanbul": "0.4.5",
-    "mocha": "3.2.0",
+    "mocha": "3.3.0",
     "mocha-clean": "1.0.0",
     "pegjs": "0.10.0"
   },
diff --git a/yarn.lock b/yarn.lock
index db6b63f0..4bfdcdff 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -211,7 +211,13 @@ d@^0.1.1, d@~0.1.1:
   dependencies:
     es5-ext "~0.10.2"
 
-debug@2.2.0, debug@^2.1.1:
+debug@2.6.0:
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.0.tgz#bc596bcabe7617f11d9fa15361eded5608b8499b"
+  dependencies:
+    ms "0.7.2"
+
+debug@^2.1.1:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da"
   dependencies:
@@ -243,9 +249,9 @@ del@^2.0.2:
     pinkie-promise "^2.0.0"
     rimraf "^2.2.8"
 
-diff@1.4.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/diff/-/diff-1.4.0.tgz#7f28d2eb9ee7b15a97efd89ce63dcfdaa3ccbabf"
+diff@3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-3.2.0.tgz#c9ce393a4b7cbd0b058a725c93df299027868ff9"
 
 doctrine@^2.0.0:
   version "2.0.0"
@@ -462,9 +468,9 @@ generate-object-property@^1.1.0:
   dependencies:
     is-property "^1.0.0"
 
-glob@7.0.5, glob@^7.0.0, glob@^7.0.3, glob@^7.0.5:
-  version "7.0.5"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-7.0.5.tgz#b4202a69099bbb4d292a7c1b95b6682b67ebdc95"
+glob@7.1.1:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.1.tgz#805211df04faaf1c63a3600306cdf5ade50b2ec8"
   dependencies:
     fs.realpath "^1.0.0"
     inflight "^1.0.4"
@@ -483,6 +489,17 @@ glob@^5.0.15:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
+glob@^7.0.0, glob@^7.0.3, glob@^7.0.5:
+  version "7.0.5"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.0.5.tgz#b4202a69099bbb4d292a7c1b95b6682b67ebdc95"
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.2"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
 globals@^9.14.0:
   version "9.14.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-9.14.0.tgz#8859936af0038741263053b39d0e76ca241e4034"
@@ -768,16 +785,16 @@ mocha-clean@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/mocha-clean/-/mocha-clean-1.0.0.tgz#7e769b16cb38745df62a28917077953b05fec064"
 
-mocha@3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-3.2.0.tgz#7dc4f45e5088075171a68896814e6ae9eb7a85e3"
+mocha@3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-3.3.0.tgz#d29b7428d3f52c82e2e65df1ecb7064e1aabbfb5"
   dependencies:
     browser-stdout "1.3.0"
     commander "2.9.0"
-    debug "2.2.0"
-    diff "1.4.0"
+    debug "2.6.0"
+    diff "3.2.0"
     escape-string-regexp "1.0.5"
-    glob "7.0.5"
+    glob "7.1.1"
     growl "1.9.2"
     json3 "3.3.2"
     lodash.create "3.1.1"
@@ -788,6 +805,10 @@ 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"
+
 mute-stream@0.0.5:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.5.tgz#8fbfabb0a98a253d3184331f9e8deb7372fac6c0"