diff --git a/package.json b/package.json
index 2b8fa88..69e0d25 100644
--- a/package.json
+++ b/package.json
@@ -83,7 +83,7 @@
     "phantomjs-prebuilt": "^2.1.3",
     "sass-loader": "^6.0.3",
     "semver": "^5.3.0",
-    "shelljs": "^0.7.7",
+    "shelljs": "^0.8.5",
     "sinon": "^2.1.0",
     "sinon-chai": "^2.9.0",
     "url-loader": "^0.5.8",
diff --git a/yarn.lock b/yarn.lock
index b019a02..3b63406 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2361,7 +2361,7 @@ glob-parent@^2.0.0:
   dependencies:
     is-glob "^2.0.0"
 
-glob@7.0.5, 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:
@@ -2382,7 +2382,7 @@ glob@^5.0.15:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-glob@^7.0.0, glob@^7.0.5, glob@^7.1.1, glob@~7.1.1:
+glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.1.1, glob@~7.1.1:
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.1.tgz#805211df04faaf1c63a3600306cdf5ade50b2ec8"
   dependencies:
@@ -4736,7 +4736,7 @@ shallow-clone@^0.1.2:
     lazy-cache "^0.2.3"
     mixin-object "^2.0.1"
 
-shelljs@^0.7.5, shelljs@^0.7.7:
+shelljs@^0.7.5:
   version "0.7.7"
   resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.7.tgz#b2f5c77ef97148f4b4f6e22682e10bba8667cff1"
   dependencies:
@@ -4744,6 +4744,14 @@ shelljs@^0.7.5, shelljs@^0.7.7:
     interpret "^1.0.0"
     rechoir "^0.6.2"
 
+shelljs@^0.8.5:
+  version "0.8.5"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.5.tgz#de055408d8361bed66c669d2f000538ced8ee20c"
+  dependencies:
+    glob "^7.0.0"
+    interpret "^1.0.0"
+    rechoir "^0.6.2"
+
 sigmund@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/sigmund/-/sigmund-1.0.1.tgz#3ff21f198cad2175f9f3b781853fd94d0d19b590"