diff --git a/package.json b/package.json
index 0696b61..06388ee 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "optimize-css-assets-webpack-plugin": "^3.2.0",
     "ora": "^1.3.0",
     "semver": "^5.4.1",
-    "shelljs": "^0.7.8",
+    "shelljs": "^0.8.5",
     "stylus": "^0.54.5",
     "stylus-loader": "^3.0.1",
     "superagent-use": "^0.1.0",
diff --git a/yarn.lock b/yarn.lock
index 40544e5..7b1f63b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3265,30 +3265,7 @@ glob-parent@^3.1.0:
     is-glob "^3.1.0"
     path-dirname "^1.0.0"
 
-glob@^7.0.0, glob@^7.0.3:
-  version "7.1.2"
-  resolved "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
-  dependencies:
-    fs.realpath "^1.0.0"
-    inflight "^1.0.4"
-    inherits "2"
-    minimatch "^3.0.4"
-    once "^1.3.0"
-    path-is-absolute "^1.0.0"
-
-glob@^7.0.5, glob@^7.1.2, glob@^7.1.3:
-  version "7.1.3"
-  resolved "https://registry.npmjs.org/glob/-/glob-7.1.3.tgz#3960832d3f1574108342dafd3a67b332c0969df1"
-  integrity sha512-vcfuiIxogLV4DlGBHIUOwI0IbrJ8HWPc4MU7HzviGeNho/UJDfi6B5p3sHeWIQ0KGIU0Jpxi5ZHxemQfLkkAwQ==
-  dependencies:
-    fs.realpath "^1.0.0"
-    inflight "^1.0.4"
-    inherits "2"
-    minimatch "^3.0.4"
-    once "^1.3.0"
-    path-is-absolute "^1.0.0"
-
-glob@^7.1.6:
+glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.1.2, glob@^7.1.3, glob@^7.1.6:
   version "7.1.6"
   resolved "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
   integrity sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==
@@ -6258,9 +6235,10 @@ shebang-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
 
-shelljs@^0.7.8:
-  version "0.7.8"
-  resolved "https://registry.npmjs.org/shelljs/-/shelljs-0.7.8.tgz#decbcf874b0d1e5fb72e14b164a9683048e9acb3"
+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"