diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 60dcaf6..265760e
--- a/package.json
+++ b/package.json
@@ -96,7 +96,7 @@
     "sass-loader": "^6.0.6",
     "semver": "5.4.1",
     "serialize-javascript": "1.4.0",
-    "shelljs": "0.8.0",
+    "shelljs": "0.8.5",
     "stats.js": "^0.17.0",
     "style-loader": "0.19.1",
     "stylus": "0.54.5",
diff --git a/yarn.lock b/yarn.lock
index 800e93a..ca5cd3b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7728,10 +7728,10 @@ shebang-regex@^1.0.0:
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
   integrity sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=
 
-shelljs@0.8.0:
-  version "0.8.0"
-  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.0.tgz#12f561c52ec5d0d3315af15616c011a18ff80d59"
-  integrity sha512-wb72o5SM27oFRq2mMeNSl70DVkkvwf3ZSgk9rvieRVz7xFMIQp02HYw0oxlZgeAWS+wzGB+jcJWQTF7hH9WIPg==
+shelljs@0.8.5:
+  version "0.8.5"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.5.tgz#de055408d8361bed66c669d2f000538ced8ee20c"
+  integrity sha512-TiwcRcrkhHvbrZbnRcFYMLl30Dfov3HKqzp5tO5b4pt6G/SezKcYhmDg15zXVBswHmctSAQKznqNW2LO5tTDow==
   dependencies:
     glob "^7.0.0"
     interpret "^1.0.0"