diff --git a/package.json b/package.json
index 1c5aa9b0..b11cc78f 100644
--- a/package.json
+++ b/package.json
@@ -79,7 +79,7 @@
     "phantomjs-prebuilt": "^2.1.14",
     "rimraf": "^2.6.0",
     "semver": "^5.3.0",
-    "shelljs": "^0.7.6",
+    "shelljs": "^0.8.5",
     "sinon": "^2.1.0",
     "sinon-chai": "^2.8.0",
     "stylus": "^0.54.5",
diff --git a/yarn.lock b/yarn.lock
index 9bb2c374..db608ca5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4913,7 +4913,7 @@ shebang-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
 
-shelljs@^0.7.5, shelljs@^0.7.6:
+shelljs@^0.7.5:
   version "0.7.8"
   resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.8.tgz#decbcf874b0d1e5fb72e14b164a9683048e9acb3"
   dependencies:
@@ -4921,6 +4921,14 @@ shelljs@^0.7.5, shelljs@^0.7.6:
     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"