diff --git a/package-lock.json b/package-lock.json
index cc2996f..f546f7d 100644
--- a/package-lock.json
+++ b/package-lock.json
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-      "version": "0.6.0",
-      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
-      "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
-      "dev": true,
-      "requires": {
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-    },
-    "tweetnacl": {
-      "version": "0.14.5",
-      "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
-      "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
-      "dev": true
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       "resolved": "https://registry.npmjs.org/type/-/type-1.0.1.tgz",
@@ -5612,15 +4784,6 @@
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       "dev": true
     },
-    "uri-js": {
-      "version": "4.2.2",
-      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
-      "integrity": "sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==",
-      "dev": true,
-      "requires": {
-        "punycode": "2.1.1"
-      }
-    },
     "urix": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/urix/-/urix-0.1.0.tgz",
@@ -5645,12 +4808,6 @@
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       "dev": true
     },
-    "uuid": {
-      "version": "3.3.2",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
-      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==",
-      "dev": true
-    },
     "v8flags": {
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/v8flags/-/v8flags-3.1.3.tgz",
@@ -5676,17 +4833,6 @@
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       "dev": true
     },
-    "verror": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
-      "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
-      "dev": true,
-      "requires": {
-        "assert-plus": "1.0.0",
-        "core-util-is": "1.0.2",
-        "extsprintf": "1.3.0"
-      }
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     "vinyl": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/vinyl/-/vinyl-2.2.0.tgz",
@@ -5776,15 +4922,6 @@
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       "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": {
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-      }
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     "window-size": {
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       "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.2.0.tgz",
@@ -5834,12 +4971,6 @@
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       "dev": true
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-    "yallist": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
-      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
-      "dev": true
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     "yargs": {
       "version": "6.4.0",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-6.4.0.tgz",
diff --git a/package.json b/package.json
index af3b1b6..148040f 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "gulp": "^4.0.2",
     "gulp-autoprefixer": "^6.1.0",
     "gulp-clean-css": "^4.2.0",
-    "gulp-sass": "^4.0.2"
+    "gulp-sass": "^5.1.0"
   },
   "dependencies": {
     "aos": "^2.3.4",