diff --git a/package.json b/package.json
index 8c47299..4ac1c42 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "babel-plugin-istanbul": "^4.0.0",
     "babel-preset-babili": "^0.0.11",
     "babel-preset-env": "^1.1.4",
-    "cross-env": "^3.1.3",
+    "cross-env": "^3.2.3",
     "nyc": "^10.0.0",
     "pre-commit": "^1.2.2",
     "rimraf": "^2.5.4",
diff --git a/yarn.lock b/yarn.lock
index 7a8126f..a1be398 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1114,18 +1114,12 @@ create-error-class@^3.0.1:
   dependencies:
     capture-stack-trace "^1.0.0"
 
-cross-env@^3.1.3:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/cross-env/-/cross-env-3.1.3.tgz#58cd8231808f50089708b091f7dd37275a8e8154"
-  dependencies:
-    cross-spawn "^3.0.1"
-
-cross-spawn@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-3.0.1.tgz#1256037ecb9f0c5f79e3d6ef135e30770184b982"
+cross-env@^3.2.3:
+  version "3.2.3"
+  resolved "http://registry.yarnpkg.com/cross-env/download/cross-env-3.2.3.tgz#a43a0799b8ec422d0279b829ce8d7cf2da6b17ac"
   dependencies:
-    lru-cache "^4.0.1"
-    which "^1.2.9"
+    cross-spawn "^5.1.0"
+    is-windows "^1.0.0"
 
 cross-spawn@^4:
   version "4.0.2"
@@ -1142,6 +1136,14 @@ cross-spawn@^5.0.1:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
+cross-spawn@^5.1.0:
+  version "5.1.0"
+  resolved "http://registry.yarnpkg.com/cross-spawn/download/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
+  dependencies:
+    lru-cache "^4.0.1"
+    shebang-command "^1.2.0"
+    which "^1.2.9"
+
 cryptiles@2.x.x:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-2.0.5.tgz#3bdfecdc608147c1c67202fa291e7dca59eaa3b8"
@@ -2025,6 +2027,10 @@ is-utf8@^0.2.0:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
 
+is-windows@^1.0.0:
+  version "1.0.0"
+  resolved "http://registry.yarnpkg.com/is-windows/download/is-windows-1.0.0.tgz#c61d61020c3ebe99261b781bd3d1622395f547f8"
+
 isarray@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
@@ -2057,19 +2063,7 @@ istanbul-lib-hook@^1.0.0-alpha.4:
   dependencies:
     append-transform "^0.3.0"
 
-istanbul-lib-instrument@^1.3.0:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-1.3.1.tgz#112c25a4f2f9bc361d13d14bbff992331b974e52"
-  dependencies:
-    babel-generator "^6.18.0"
-    babel-template "^6.16.0"
-    babel-traverse "^6.18.0"
-    babel-types "^6.18.0"
-    babylon "^6.13.0"
-    istanbul-lib-coverage "^1.0.0"
-    semver "^5.3.0"
-
-istanbul-lib-instrument@^1.4.2:
+istanbul-lib-instrument@^1.3.0, istanbul-lib-instrument@^1.4.2:
   version "1.4.2"
   resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-1.4.2.tgz#0e2fdfac93c1dabf2e31578637dc78a19089f43e"
   dependencies: