update yarn.lock

yarn.lock

@@ -5167,7 +5167,21 @@ [email protected]:
     vinyl "^2.1.0"
     vinyl-sourcemaps-apply "^0.2.1"
 
-[email protected], gulp-util@^3.0.7:
+gulp-util@^2.2.19:
+  version "2.2.20"
+  resolved "https://registry.yarnpkg.com/gulp-util/-/gulp-util-2.2.20.tgz#d7146e5728910bd8f047a6b0b1e549bc22dbd64c"
+  integrity sha1-1xRuVyiRC9jwR6awseVJvCLb1kw=
+  dependencies:
+    chalk "^0.5.0"
+    dateformat "^1.0.7-1.2.3"
+    lodash._reinterpolate "^2.4.1"
+    lodash.template "^2.4.1"
+    minimist "^0.2.0"
+    multipipe "^0.1.0"
+    through2 "^0.5.0"
+    vinyl "^0.2.1"
+
+gulp-util@^3.0.7:
   version "3.0.8"
   resolved "https://registry.yarnpkg.com/gulp-util/-/gulp-util-3.0.8.tgz#0054e1e744502e27c04c187c3ecc505dd54bbb4f"
   integrity sha1-AFTh50RQLifATBh8PsxQXdVLu08=
@@ -5191,20 +5205,6 @@ [email protected], gulp-util@^3.0.7:
     through2 "^2.0.0"
     vinyl "^0.5.0"
 
-gulp-util@^2.2.19:
-  version "2.2.20"
-  resolved "https://registry.yarnpkg.com/gulp-util/-/gulp-util-2.2.20.tgz#d7146e5728910bd8f047a6b0b1e549bc22dbd64c"
-  integrity sha1-1xRuVyiRC9jwR6awseVJvCLb1kw=
-  dependencies:
-    chalk "^0.5.0"
-    dateformat "^1.0.7-1.2.3"
-    lodash._reinterpolate "^2.4.1"
-    lodash.template "^2.4.1"
-    minimist "^0.2.0"
-    multipipe "^0.1.0"
-    through2 "^0.5.0"
-    vinyl "^0.2.1"
-
 [email protected]:
   version "0.9.1"
   resolved "https://registry.yarnpkg.com/gulp-webserver/-/gulp-webserver-0.9.1.tgz#e09992165d97c5865616d642a1601529b0367064"