diff --git a/client/package-lock.json b/client/package-lock.json
index 9cf5a439..45987c34 100644
--- a/client/package-lock.json
+++ b/client/package-lock.json
@@ -9516,9 +9516,9 @@
       }
     },
     "fstream": {
-      "version": "1.0.11",
-      "resolved": "https://registry.npmjs.org/fstream/-/fstream-1.0.11.tgz",
-      "integrity": "sha1-XB+x8RdHcRTwYyoOtLcbPLD9MXE=",
+      "version": "1.0.12",
+      "resolved": "https://registry.npmjs.org/fstream/-/fstream-1.0.12.tgz",
+      "integrity": "sha512-WvJ193OHa0GHPEL+AycEJgxvBEwyfRkN1vhjca23OaPVMCaLCXTd5qAu82AjTcgP1UJmytkOKb63Ypde7raDIg==",
       "requires": {
         "graceful-fs": "^4.1.2",
         "inherits": "~2.0.0",
@@ -9723,13 +9723,20 @@
       }
     },
     "globule": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/globule/-/globule-1.2.1.tgz",
-      "integrity": "sha512-g7QtgWF4uYSL5/dn71WxubOrS7JVGCnFPEnoeChJmBnyR9Mw8nGoEwOgJL/RC2Te0WhbsEUCejfH8SZNJ+adYQ==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/globule/-/globule-1.3.1.tgz",
+      "integrity": "sha512-OVyWOHgw29yosRHCHo7NncwR1hW5ew0W/UrvtwvjefVJeQ26q4/8r8FmPsSF1hJ93IgWkyv16pCTz6WblMzm/g==",
       "requires": {
         "glob": "~7.1.1",
-        "lodash": "~4.17.10",
+        "lodash": "~4.17.12",
         "minimatch": "~3.0.2"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.15",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
+        }
       }
     },
     "graceful-fs": {
@@ -10338,9 +10345,9 @@
       "integrity": "sha1-khi5srkoojixPcT7a21XbyMUU+o="
     },
     "in-publish": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/in-publish/-/in-publish-2.0.0.tgz",
-      "integrity": "sha1-4g/146KvwmkDILbcVSaCqcf631E="
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/in-publish/-/in-publish-2.0.1.tgz",
+      "integrity": "sha512-oDM0kUSNFC31ShNxHKUyfZKy8ZeXZBWMjMdZHKLOk13uvT27VTL/QzRGfRUcevJhpkZAvlhPYuXkF7eNWrtyxQ=="
     },
     "indent-string": {
       "version": "2.1.0",
@@ -13571,21 +13578,11 @@
       "integrity": "sha1-UgOte6Ql+uhCRg5pbbnPPmqsBXw=",
       "dev": true
     },
-    "lodash.assign": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/lodash.assign/-/lodash.assign-4.2.0.tgz",
-      "integrity": "sha1-DZnzzNem0mHRm9rrkkUAXShYCOc="
-    },
     "lodash.camelcase": {
       "version": "4.3.0",
       "resolved": "https://registry.npmjs.org/lodash.camelcase/-/lodash.camelcase-4.3.0.tgz",
       "integrity": "sha1-soqmKIorn8ZRA1x3EfZathkDMaY="
     },
-    "lodash.clonedeep": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/lodash.clonedeep/-/lodash.clonedeep-4.5.0.tgz",
-      "integrity": "sha1-4j8/nE+Pvd6HJSnBBxhXoIblzO8="
-    },
     "lodash.create": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/lodash.create/-/lodash.create-3.1.1.tgz",
@@ -13630,11 +13627,6 @@
       "resolved": "https://registry.npmjs.org/lodash.memoize/-/lodash.memoize-4.1.2.tgz",
       "integrity": "sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4="
     },
-    "lodash.mergewith": {
-      "version": "4.6.1",
-      "resolved": "https://registry.npmjs.org/lodash.mergewith/-/lodash.mergewith-4.6.1.tgz",
-      "integrity": "sha512-eWw5r+PYICtEBgrBE5hhlT6aAa75f411bgDz/ZL2KZqYV03USvucsxcHUIlGTDTECs1eunpI7HOV7U+WLDvNdQ=="
-    },
     "lodash.once": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/lodash.once/-/lodash.once-4.1.1.tgz",
@@ -14236,7 +14228,8 @@
     "nan": {
       "version": "2.10.0",
       "resolved": "https://registry.npmjs.org/nan/-/nan-2.10.0.tgz",
-      "integrity": "sha512-bAdJv7fBLhWC+/Bls0Oza+mvTaNQtP+1RyhhhvD95pgUJz6XM5IzgmxOkItJ9tkoCiplvAnXI1tNmmUD/eScyA=="
+      "integrity": "sha512-bAdJv7fBLhWC+/Bls0Oza+mvTaNQtP+1RyhhhvD95pgUJz6XM5IzgmxOkItJ9tkoCiplvAnXI1tNmmUD/eScyA==",
+      "optional": true
     },
     "nanomatch": {
       "version": "1.2.13",
@@ -14524,9 +14517,9 @@
       }
     },
     "node-sass": {
-      "version": "4.9.2",
-      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.9.2.tgz",
-      "integrity": "sha512-LdxoJLZutx0aQXHtWIYwJKMj+9pTjneTcLWJgzf2XbGu0q5pRNqW5QvFCEdm3mc5rJOdru/mzln5d0EZLacf6g==",
+      "version": "4.13.1",
+      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.13.1.tgz",
+      "integrity": "sha512-TTWFx+ZhyDx1Biiez2nB0L3YrCZ/8oHagaDalbuBSlqXgUPsdkUSzJsVxeDO9LtPB49+Fh3WQl3slABo6AotNw==",
       "requires": {
         "async-foreach": "^0.1.3",
         "chalk": "^1.1.1",
@@ -14535,20 +14528,29 @@
         "get-stdin": "^4.0.1",
         "glob": "^7.0.3",
         "in-publish": "^2.0.0",
-        "lodash.assign": "^4.2.0",
-        "lodash.clonedeep": "^4.3.2",
-        "lodash.mergewith": "^4.6.0",
+        "lodash": "^4.17.15",
         "meow": "^3.7.0",
         "mkdirp": "^0.5.1",
-        "nan": "^2.10.0",
-        "node-gyp": "^3.3.1",
+        "nan": "^2.13.2",
+        "node-gyp": "^3.8.0",
         "npmlog": "^4.0.0",
-        "request": "2.87.0",
+        "request": "^2.88.0",
         "sass-graph": "^2.2.4",
         "stdout-stream": "^1.4.0",
         "true-case-path": "^1.0.2"
       },
       "dependencies": {
+        "ajv": {
+          "version": "6.12.0",
+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.0.tgz",
+          "integrity": "sha512-D6gFiFA0RRLyUbvijN74DWAjXSFxWKaWP7mldxkVhyhAV3+SWA9HEJPHQ2c9soIeTFJqcSdFDGFgdqs1iUU2Hw==",
+          "requires": {
+            "fast-deep-equal": "^3.1.1",
+            "fast-json-stable-stringify": "^2.0.0",
+            "json-schema-traverse": "^0.4.1",
+            "uri-js": "^4.2.2"
+          }
+        },
         "ansi-styles": {
           "version": "2.2.1",
           "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
@@ -14575,10 +14577,80 @@
             "which": "^1.2.9"
           }
         },
+        "fast-deep-equal": {
+          "version": "3.1.1",
+          "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.1.tgz",
+          "integrity": "sha512-8UEa58QDLauDNfpbrX55Q9jrGHThw2ZMdOky5Gl1CDtVeJDPVrG4Jxx1N8jw2gkWaff5UUuX1KJd+9zGe2B+ZA=="
+        },
+        "har-validator": {
+          "version": "5.1.3",
+          "resolved": "https://registry.npmjs.org/har-validator/-/har-validator-5.1.3.tgz",
+          "integrity": "sha512-sNvOCzEQNr/qrvJgc3UG/kD4QtlHycrzwS+6mfTrrSq97BvaYcPZZI1ZSqGSPR73Cxn4LKTD4PttRwfU7jWq5g==",
+          "requires": {
+            "ajv": "^6.5.5",
+            "har-schema": "^2.0.0"
+          }
+        },
+        "json-schema-traverse": {
+          "version": "0.4.1",
+          "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz",
+          "integrity": "sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg=="
+        },
+        "lodash": {
+          "version": "4.17.15",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
+        },
+        "nan": {
+          "version": "2.14.0",
+          "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.0.tgz",
+          "integrity": "sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg=="
+        },
+        "oauth-sign": {
+          "version": "0.9.0",
+          "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz",
+          "integrity": "sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ=="
+        },
+        "request": {
+          "version": "2.88.2",
+          "resolved": "https://registry.npmjs.org/request/-/request-2.88.2.tgz",
+          "integrity": "sha512-MsvtOrfG9ZcrOwAW+Qi+F6HbD0CWXEh9ou77uOb7FM2WPhwT7smM833PzanhJLsgXjN89Ir6V2PczXNnMpwKhw==",
+          "requires": {
+            "aws-sign2": "~0.7.0",
+            "aws4": "^1.8.0",
+            "caseless": "~0.12.0",
+            "combined-stream": "~1.0.6",
+            "extend": "~3.0.2",
+            "forever-agent": "~0.6.1",
+            "form-data": "~2.3.2",
+            "har-validator": "~5.1.3",
+            "http-signature": "~1.2.0",
+            "is-typedarray": "~1.0.0",
+            "isstream": "~0.1.2",
+            "json-stringify-safe": "~5.0.1",
+            "mime-types": "~2.1.19",
+            "oauth-sign": "~0.9.0",
+            "performance-now": "^2.1.0",
+            "qs": "~6.5.2",
+            "safe-buffer": "^5.1.2",
+            "tough-cookie": "~2.5.0",
+            "tunnel-agent": "^0.6.0",
+            "uuid": "^3.3.2"
+          }
+        },
         "supports-color": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
           "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc="
+        },
+        "tough-cookie": {
+          "version": "2.5.0",
+          "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.5.0.tgz",
+          "integrity": "sha512-nlLsUzgm1kfLXSXfRZMc1KLAugd4hqJHDTvc2hDIwS3mZAfMEuMbc03SujMF+GEcpaX/qboeycw6iO8JwVv2+g==",
+          "requires": {
+            "psl": "^1.1.28",
+            "punycode": "^2.1.1"
+          }
         }
       }
     },
@@ -17198,8 +17270,7 @@
     "psl": {
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/psl/-/psl-1.7.0.tgz",
-      "integrity": "sha512-5NsSEDv8zY70ScRnOTn7bK7eanl2MvFrOrS/R6x+dBt5g1ghnj9Zv90kO8GwT8gxcu2ANyFprnFYB85IogIJOQ==",
-      "dev": true
+      "integrity": "sha512-5NsSEDv8zY70ScRnOTn7bK7eanl2MvFrOrS/R6x+dBt5g1ghnj9Zv90kO8GwT8gxcu2ANyFprnFYB85IogIJOQ=="
     },
     "public-encrypt": {
       "version": "4.0.2",
@@ -18647,9 +18718,9 @@
       "integrity": "sha512-zhSCtt8v2NDrRlPQpCNtw/heZLtfUDqxBM1udqikb/Hbk52LK4nQSwr10u77iopCW5LsyHpuXS0GnEc48mLeew=="
     },
     "stdout-stream": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/stdout-stream/-/stdout-stream-1.4.0.tgz",
-      "integrity": "sha1-osfIWH5U2UJ+qe2zrD8s1SLfN4s=",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/stdout-stream/-/stdout-stream-1.4.1.tgz",
+      "integrity": "sha512-j4emi03KXqJWcIeF8eIXkjMFN1Cmb8gUlDYGeBALLPo5qdyTfA9bOtl8m33lRoC+vFMkP3gl0WsDr6+gzxbbTA==",
       "requires": {
         "readable-stream": "^2.0.1"
       }
@@ -18866,12 +18937,12 @@
       "integrity": "sha1-mTcqXJmb8t8WCvwNdL7U9HlIzSI="
     },
     "tar": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/tar/-/tar-2.2.1.tgz",
-      "integrity": "sha1-jk0qJWwOIYXGsYrWlK7JaLg8sdE=",
+      "version": "2.2.2",
+      "resolved": "https://registry.npmjs.org/tar/-/tar-2.2.2.tgz",
+      "integrity": "sha512-FCEhQ/4rE1zYv9rYXJw/msRqsnmlje5jHP6huWeBZ704jUTy02c5AZyWujpMR1ax6mVw9NyJMfuK2CMDWVIfgA==",
       "requires": {
         "block-stream": "*",
-        "fstream": "^1.0.2",
+        "fstream": "^1.0.12",
         "inherits": "2"
       }
     },
@@ -19159,25 +19230,11 @@
       "integrity": "sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM="
     },
     "true-case-path": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/true-case-path/-/true-case-path-1.0.2.tgz",
-      "integrity": "sha1-fskRMJJHZsf1c74wIMNPj9/QDWI=",
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/true-case-path/-/true-case-path-1.0.3.tgz",
+      "integrity": "sha512-m6s2OdQe5wgpFMC+pAJ+q9djG82O2jcHPOI6RNg1yy9rCYR+WD6Nbpl32fDpfC56nirdRy+opFa/Vk7HYhqaew==",
       "requires": {
-        "glob": "^6.0.4"
-      },
-      "dependencies": {
-        "glob": {
-          "version": "6.0.4",
-          "resolved": "https://registry.npmjs.org/glob/-/glob-6.0.4.tgz",
-          "integrity": "sha1-DwiGD2oVUSey+t1PnOJLGqtuTSI=",
-          "requires": {
-            "inflight": "^1.0.4",
-            "inherits": "2",
-            "minimatch": "2 || 3",
-            "once": "^1.3.0",
-            "path-is-absolute": "^1.0.0"
-          }
-        }
+        "glob": "^7.1.2"
       }
     },
     "tryer": {
diff --git a/client/package.json b/client/package.json
index ee872d1e..621a3e4c 100644
--- a/client/package.json
+++ b/client/package.json
@@ -57,7 +57,7 @@
     "lodash": "^4.17.10",
     "moment": "^2.24.0",
     "node-notifier": "^5.1.2",
-    "node-sass": "^4.9.2",
+    "node-sass": "^4.13.1",
     "optimize-css-assets-webpack-plugin": "^3.2.0",
     "ora": "^1.2.0",
     "portfinder": "^1.0.13",
diff --git a/client/src/hep-client/index.js b/client/src/hep-client/index.js
index 956e8d3e..b1f77a09 100644
--- a/client/src/hep-client/index.js
+++ b/client/src/hep-client/index.js
@@ -1,6 +1,6 @@
 import * as axios from 'axios'
 
-const hepBaseUrl = 'https://stage.hep-verlag.ch';
+const hepBaseUrl = 'https://www.hep-verlag.ch';
 
 export function register(registrationData) {
   return axios.post('/api/proxy/registration/', registrationData);
@@ -11,7 +11,7 @@ export function login(username, password) {
 }
 
 export function emailExists(email) {
-  return axios.post(`${hepBaseUrl}/rest/deutsch/V1/customers/isEmailAvailable`, {
+  return axios.post(`https://www.hep-verlag.ch/rest/deutsch/V1/customers/isEmailAvailable`, {
     customerEmail: email,
     websiteId: 1
   });