diff --git a/package-lock.json b/package-lock.json
index 4df26ea..dab3601 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,9 +1,14 @@
 {
   "name": "responsive-html-email-signature",
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+  "version": "4.1.1",
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+      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.10.46.tgz",
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       "resolved": "https://registry.npmjs.org/JSV/-/JSV-4.0.2.tgz",
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@@ -268,9 +273,9 @@
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+      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.5.1.tgz",
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-        "caniuse-lite": "^1.0.30000878",
+        "browserslist": "^4.5.4",
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-        "postcss": "^7.0.2",
-        "postcss-value-parser": "^3.2.3"
+        "postcss": "^7.0.14",
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+              "requires": {
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+              }
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+          "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.14.tgz",
+          "integrity": "sha512-NsbD6XUUMZvBxtQAJuWDJeeC4QFsmWsfozWxCJPWf3M55K9iu2iMDaKqyoOdTJ1R4usBXuxlVFAIo8rZPQD4Bg==",
+          "requires": {
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+            "source-map": "^0.6.1",
+            "supports-color": "^6.1.0"
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+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.1.0.tgz",
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@@ -353,7 +398,7 @@
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@@ -361,7 +406,7 @@
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@@ -398,9 +443,9 @@
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@@ -444,29 +489,29 @@
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+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.5.5.tgz",
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-        "electron-to-chromium": "^1.3.61",
-        "node-releases": "^1.0.0-alpha.11"
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+        "electron-to-chromium": "^1.3.124",
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-      "integrity": "sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8="
+      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
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-      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
-      "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg="
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.0.tgz",
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@@ -501,9 +546,9 @@
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@@ -632,11 +677,55 @@
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       "integrity": "sha1-2jCcwmPfFZlMaIypAheco8fNfH4="
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+      "resolved": "https://registry.npmjs.org/clone-buffer/-/clone-buffer-1.0.0.tgz",
+      "integrity": "sha1-4+JbIHrE5wGvch4staFnksrD3Fg="
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       "integrity": "sha1-uI+UqCzzi4eR1YBG6kAprYjKmdE="
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+    "cloneable-readable": {
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+      "resolved": "https://registry.npmjs.org/cloneable-readable/-/cloneable-readable-1.1.2.tgz",
+      "integrity": "sha512-Bq6+4t+lbM8vhTs/Bef5c5AdEMtapp/iFb6+s4/Hh9MVTt8OLKH7ZOOZSCT+Ys7hsHvqv0GuMPJ1lnQJVHvxpg==",
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+          "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE="
+        },
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+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
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+            "inherits": "~2.0.3",
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+          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+          "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
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@@ -726,9 +815,9 @@
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@@ -786,9 +875,9 @@
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@@ -797,9 +886,9 @@
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@@ -821,9 +910,9 @@
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@@ -908,7 +1000,7 @@
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@@ -6779,11 +6948,11 @@
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@@ -6816,21 +6990,26 @@
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+      "resolved": "https://registry.npmjs.org/superagent-proxy/-/superagent-proxy-2.0.0.tgz",
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-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
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+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
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-            "ms": "2.0.0"
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+        "ms": {
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+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
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       }
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@@ -6852,6 +7031,16 @@
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       }
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+    "terser": {
+      "version": "3.17.0",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-3.17.0.tgz",
+      "integrity": "sha512-/FQzzPJmCpjAH9Xvk2paiWrFq+5M6aVOf+2KRbwhByISDX/EujxsK+BAvrhb6H+2rtrLCHK9N01wO014vrIwVQ==",
+      "requires": {
+        "commander": "^2.19.0",
+        "source-map": "~0.6.1",
+        "source-map-support": "~0.5.10"
+      }
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@@ -6943,7 +7132,7 @@
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+      "integrity": "sha1-E8/dmzNlUvMLUfM6iuG0Knp1mc4=",
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@@ -6960,6 +7149,11 @@
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       }
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+    "toidentifier": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
+      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
+    },
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@@ -7128,7 +7322,7 @@
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+      "integrity": "sha1-1QyMrHmhn7wg8pEfVuuXP04QBw8="
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@@ -7202,6 +7396,14 @@
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           "integrity": "sha1-xhJqkK1Pctv1rNskPMN3JP6T/B8="
         },
+        "graceful-fs": {
+          "version": "3.0.11",
+          "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-3.0.11.tgz",
+          "integrity": "sha1-dhPHeKGv6mLyXGMKCG1/Osu92Bg=",
+          "requires": {
+            "natives": "^1.1.0"
+          }
+        },
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@@ -7286,7 +7488,7 @@
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     "wrap-ansi": {
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-      "resolved": "http://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
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diff --git a/package.json b/package.json
index fa1ffe3..e73fd9c 100644
--- a/package.json
+++ b/package.json
@@ -23,27 +23,31 @@
   },
   "homepage": "https://github.com/danmindru/responsive-html-email-signature#readme",
   "dependencies": {
-    "autoprefixer": "^9.1.3",
-    "del": "^3.0.0",
+    "autoprefixer": "^9.5.1",
+    "del": "^4.1.0",
+    "graceful-fs": "^4.1.15",
     "gulp": "~3.9.1",
-    "gulp-autoprefixer": "^6.0.0",
+    "gulp-autoprefixer": "^6.1.0",
     "gulp-david": "^1.0.1",
-    "gulp-inline-css": "^3.3.0",
+    "gulp-inline-css": "^3.3.1",
     "gulp-inline-images-no-http": "^1.3.0",
-    "gulp-jsonlint": "^1.2.2",
+    "gulp-jsonlint": "^1.3.0",
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     "gulp-minify-html": "~1.0.5",
-    "gulp-minify-inline": "^1.0.0",
-    "gulp-plumber": "^1.2.0",
+    "gulp-minify-inline": "^1.1.0",
+    "gulp-plumber": "^1.2.1",
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-    "gulp-preprocess": "^3.0.1",
+    "gulp-preprocess": "^3.0.2",
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-    "gulp-sass": "^4.0.1",
+    "gulp-sass": "^4.0.2",
     "klaw": "^3.0.0",
-    "lodash": "^4.17.11",
     "q": "^1.5.1"
   },
+  "resolutions": {
+    "graceful-fs": "^4.1.15"
+  },
   "scripts": {
+    "create": "node_modules/.bin/gulp",
     "deploy": "cp -r dist demo && git push origin `git subtree split --prefix demo develop`:gh-pages --force"
   }
 }