diff --git a/package-lock.json b/package-lock.json
index d39b8b3b0e..7c0ac04558 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -1191,12 +1192,15 @@
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@@ -1380,9 +1384,9 @@
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-      "integrity": "sha1-K0DdSn7bfwxGhkO4mbgysxWYjmo="
+      "version": "1.0.30001238",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001238.tgz",
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@@ -1617,6 +1621,11 @@
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+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.2.2.tgz",
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@@ -2607,9 +2616,9 @@
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-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.18.tgz",
-      "integrity": "sha1-PcyZ2j5rZl9qu8ccKK1Ros1zGpw="
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     "email-validator": {
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@@ -2878,6 +2887,11 @@
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       }
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+      "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.1.1.tgz",
+      "integrity": "sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw=="
+    },
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@@ -6422,15 +6436,29 @@
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-      "resolved": "https://registry.npmjs.org/gulp-autoprefixer/-/gulp-autoprefixer-4.0.0.tgz",
-      "integrity": "sha1-4AqMVxuF0GUWrCY0G+kN/Z/B6rA=",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/gulp-autoprefixer/-/gulp-autoprefixer-6.0.0.tgz",
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-        "autoprefixer": "^7.0.0",
-        "gulp-util": "^3.0.0",
-        "postcss": "^6.0.1",
+        "autoprefixer": "^9.1.3",
+        "fancy-log": "^1.3.2",
+        "plugin-error": "^1.0.1",
+        "postcss": "^7.0.2",
         "through2": "^2.0.0",
         "vinyl-sourcemaps-apply": "^0.2.0"
+      },
+      "dependencies": {
+        "fancy-log": {
+          "version": "1.3.3",
+          "resolved": "https://registry.npmjs.org/fancy-log/-/fancy-log-1.3.3.tgz",
+          "integrity": "sha512-k9oEhlyc0FrVh25qYuSELjr8oxsCoc4/LEZfg2iJJrfEk/tZL9bCoJE47gqAvI2m/AUjluCS4+3I0eTx8n3AEw==",
+          "requires": {
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+            "color-support": "^1.1.3",
+            "parse-node-version": "^1.0.0",
+            "time-stamp": "^1.0.0"
+          }
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@@ -13952,6 +13980,11 @@
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+    "node-releases": {
+      "version": "1.1.73",
+      "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.73.tgz",
+      "integrity": "sha512-uW7fodD6pyW2FZNZnp/Z3hvWKeEW1Y8R1+1CnErE8cXFXzl5blBOoVB41CvMer6P6Q0S5FXDwcHgFd1Wj0U9zg=="
+    },
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@@ -15075,26 +15108,67 @@
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-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-6.0.9.tgz",
-      "integrity": "sha512-bBE2AHNEBhF23TfET6AA/lFP8ah+qHOZoFJEflFG+HgvVLdTmMOrocx/4LVVDIn3w6jUssw1q2Exk1cc9UOI8w==",
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+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.36.tgz",
+      "integrity": "sha512-BebJSIUMwJHRH0HAQoxN4u1CN86glsrwsW0q7T+/m44eXOUAxSNdHRkNZPYz5vVUbg17hFgOQDE7fZk7li3pZw==",
       "requires": {
-        "chalk": "^2.1.0",
-        "source-map": "^0.5.6",
-        "supports-color": "^4.2.1"
+        "chalk": "^2.4.2",
+        "source-map": "^0.6.1",
+        "supports-color": "^6.1.0"
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       "dependencies": {
+        "ansi-styles": {
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+          "requires": {
+            "color-convert": "^1.9.0"
+          }
+        },
+        "chalk": {
+          "version": "2.4.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+          "requires": {
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
+          },
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+            "supports-color": {
+              "version": "5.5.0",
+              "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+              "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+              "requires": {
+                "has-flag": "^3.0.0"
+              }
+            }
+          }
+        },
+        "has-flag": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
+          "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0="
+        },
         "source-map": {
-          "version": "0.5.6",
-          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.6.tgz",
-          "integrity": "sha1-dc449SvwczxafwwRjYEzSiu19BI="
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g=="
+        },
+        "supports-color": {
+          "version": "6.1.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.1.0.tgz",
+          "integrity": "sha512-qe1jfm1Mg7Nq/NSh6XE24gPXROEVsWHxC1LIx//XNlD9iw7YZQGjZNjYN7xGaEG6iKdA8EtNFW6R0gjnVXp+wQ==",
+          "requires": {
+            "has-flag": "^3.0.0"
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     "postcss-value-parser": {
-      "version": "3.3.0",
-      "resolved": "https://registry.npmjs.org/postcss-value-parser/-/postcss-value-parser-3.3.0.tgz",
-      "integrity": "sha1-h/OPnxj3dKSrTIojL1xc6IcqnRU="
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/postcss-value-parser/-/postcss-value-parser-4.1.0.tgz",
+      "integrity": "sha512-97DXOFbQJhk71ne5/Mt6cOu6yxsSfM0QGQyl0L25Gca4yGWEGJaig7l7gbCX623VqTBNGLRLaVUCnNkcedlRSQ=="
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@@ -17008,6 +17082,16 @@
                 "pac-resolver": "^3.0.0",
                 "raw-body": "^2.2.0",
                 "socks-proxy-agent": "^4.0.1"
+              },
+              "dependencies": {
+                "https-proxy-agent-snyk-fork": {
+                  "version": "git://github.com/snyk/node-https-proxy-agent.git#5e86ccb682d0c833c8daa25ee6f91c670161cd66",
+                  "from": "git://github.com/snyk/node-https-proxy-agent.git#fix/https-agent-vuln",
+                  "requires": {
+                    "agent-base": "^4.3.0",
+                    "debug": "^3.1.0"
+                  }
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             },
             "pac-resolver": {
diff --git a/package.json b/package.json
index 17b43b1ce9..a17dc33235 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
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     "gulp": "^4.0.2",
     "gulp-angular-templatecache": "~2.0.0",
-    "gulp-autoprefixer": "~4.0.0",
+    "gulp-autoprefixer": "~6.0.0",
     "gulp-concat": "~2.6.1",
     "gulp-csslint": "^1.0.1",
     "gulp-csso": "^3.0.1",