diff --git a/package-lock.json b/package-lock.json
index bcf6f9a..60513d4 100644
--- a/package-lock.json
+++ b/package-lock.json
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-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-3.0.0.tgz",
-          "integrity": "sha1-MvxLn82vhF/N9+c7uXysImHwqwo=",
-          "dev": true
-        }
-      }
-    },
     "yauzl": {
       "version": "2.9.1",
       "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.9.1.tgz",
       "integrity": "sha1-qBmB6nCleUYTOIPwKcWCGok1mn8=",
       "dev": true,
+      "optional": true,
       "requires": {
         "buffer-crc32": "0.2.13",
         "fd-slicer": "1.0.1"
diff --git a/package.json b/package.json
index f987985..817b6db 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "gulp": "^3.9.1",
     "gulp-imagemin": "^4.1.0",
     "gulp-rename": "^1.4.0",
-    "gulp-sass": "^4.0.2",
+    "gulp-sass": "^5.0.0",
     "gulp-sass-lint": "^1.3.4",
     "gulp.spritesmith": "^6.9.0",
     "merge-stream": "^1.0.1",