diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index aa819b1..f643903
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "gulp-sass": "^2.3.2",
     "gulp-sourcemaps": "^1.6.0",
     "hamburgers": "^0.5.0",
-    "lodash": "^4.15.0",
+    "lodash": "^4.17.21",
     "normalize.css": "^4.2.0",
     "vinyl-buffer": "^1.0.0",
     "babelify": "^7.3.0",
diff --git a/yarn.lock b/yarn.lock
index e31e803..436e2fc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1036,7 +1036,7 @@ delegates@^1.0.0:
 
 deprecated@^0.0.1:
   version "0.0.1"
-  resolved "http://registry.npmjs.org/deprecated/-/deprecated-0.0.1.tgz#f9c9af5464afa1e7a971458a8bdef2aa94d5bb19"
+  resolved "https://registry.npmjs.org/deprecated/-/deprecated-0.0.1.tgz#f9c9af5464afa1e7a971458a8bdef2aa94d5bb19"
 
 deps-sort@^2.0.0:
   version "2.0.0"
@@ -2165,9 +2165,9 @@ lodash.templatesettings@^3.0.0:
     lodash._reinterpolate "^3.0.0"
     lodash.escape "^3.0.0"
 
-lodash@^4.0.0, lodash@^4.15.0, lodash@^4.2.0:
-  version "4.17.3"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.3.tgz#557ed7d2a9438cac5fd5a43043ca60cb455e01f7"
+lodash@^4.0.0, lodash@^4.17.21, lodash@^4.2.0:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 lodash@~1.0.1:
   version "1.0.2"
@@ -2769,7 +2769,7 @@ regenerator-transform@0.9.8:
 
 regex-cache@^0.4.2:
   version "0.4.3"
-  resolved "http://registry.npmjs.org/regex-cache/-/regex-cache-0.4.3.tgz#9b1a6c35d4d0dfcef5711ae651e8e9d3d7114145"
+  resolved "https://registry.npmjs.org/regex-cache/-/regex-cache-0.4.3.tgz#9b1a6c35d4d0dfcef5711ae651e8e9d3d7114145"
   dependencies:
     is-equal-shallow "^0.1.3"
     is-primitive "^2.0.0"
@@ -3178,7 +3178,7 @@ typedarray@~0.0.5:
 
 umd@^3.0.0:
   version "3.0.1"
-  resolved "http://registry.npmjs.org/umd/-/umd-3.0.1.tgz#8ae556e11011f63c2596708a8837259f01b3d60e"
+  resolved "https://registry.npmjs.org/umd/-/umd-3.0.1.tgz#8ae556e11011f63c2596708a8837259f01b3d60e"
 
 unc-path-regex@^0.1.0:
   version "0.1.2"