diff --git a/package-lock.json b/package-lock.json
index 0b33bb8..e33f4ca 100644
--- a/package-lock.json
+++ b/package-lock.json
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       "resolved": "https://registry.npmjs.org/vinyl/-/vinyl-2.2.0.tgz",
@@ -7410,15 +6747,6 @@
       "integrity": "sha1-u6Y8qGGUiZT/MHc2CJ47lgJsKk8=",
       "dev": true
     },
-    "wide-align": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.3.tgz",
-      "integrity": "sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==",
-      "dev": true,
-      "requires": {
-        "string-width": "^1.0.2 || 2"
-      }
-    },
     "wrap-ansi": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
@@ -7504,6 +6832,7 @@
       "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
       "integrity": "sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=",
       "dev": true,
+      "optional": true,
       "requires": {
         "buffer-crc32": "~0.2.3",
         "fd-slicer": "~1.1.0"
diff --git a/package.json b/package.json
index 18ee438..50c0fb0 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "gulp-csso": "^3.0.1",
     "gulp-image-resize": "^0.13.1",
     "gulp-imagemin": "^6.1.0",
-    "gulp-sass": "^4.0.2",
+    "gulp-sass": "^5.1.0",
     "normalize.css": "^8.0.1"
   },
   "browserslist": [