diff --git a/packages/auth/lib/signIn.js b/packages/auth/lib/signIn.js
index 9f3bc8ed4..c15af95cc 100644
--- a/packages/auth/lib/signIn.js
+++ b/packages/auth/lib/signIn.js
@@ -1,6 +1,6 @@
 const uuid = require('uuid/v4')
 const querystring = require('querystring')
-const isEmail = require('email-validator').validate
+const isEmail = require('isemail').validate
 const kraut = require('kraut')
 const geoForIP = require('./geoForIP')
 const checkEnv = require('check-env')
diff --git a/packages/auth/package.json b/packages/auth/package.json
index adc24f0b1..fbccd8082 100644
--- a/packages/auth/package.json
+++ b/packages/auth/package.json
@@ -35,10 +35,10 @@
     "connect-pg-simple": "^3.1.2",
     "country-emoji": "^1.2.0",
     "debug": "^3.1.0",
-    "email-validator": "^1.1.1",
     "export-files": "^2.1.1",
     "express-session": "^1.15.6",
     "geoip-database": "^1.0.11",
+    "isemail": "^3.1.1",
     "is-uuid": "^1.0.2",
     "kraut": "^0.1.1",
     "maxmind": "^2.4.0",
diff --git a/servers/republik/modules/crowdfundings/graphql/resolvers/_mutations/updateEmail.js b/servers/republik/modules/crowdfundings/graphql/resolvers/_mutations/updateEmail.js
index f8d0eb550..7dc4a2e58 100644
--- a/servers/republik/modules/crowdfundings/graphql/resolvers/_mutations/updateEmail.js
+++ b/servers/republik/modules/crowdfundings/graphql/resolvers/_mutations/updateEmail.js
@@ -1,4 +1,4 @@
-const isEmail = require('email-validator').validate
+const isEmail = require('isemail').validate
 const { Roles, ensureSignedIn } = require('@orbiting/backend-modules-auth')
 const updateUserEmail = require('../../../lib/updateUserEmail')
 
diff --git a/yarn.lock b/yarn.lock
index e82d584b9..7b8ce311a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -26,11 +26,11 @@
     connect-pg-simple "^3.1.2"
     country-emoji "^1.2.0"
     debug "^3.1.0"
-    email-validator "^1.1.1"
     export-files "^2.1.1"
     express-session "^1.15.6"
     geoip-database "^1.0.11"
     is-uuid "^1.0.2"
+    isemail "^3.1.1"
     kraut "^0.1.1"
     maxmind "^2.4.0"
     passport "^0.4.0"
@@ -1657,10 +1657,6 @@ elegant-spinner@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/elegant-spinner/-/elegant-spinner-1.0.1.tgz#db043521c95d7e303fd8f345bedc3349cfb0729e"
 
-email-validator@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/email-validator/-/email-validator-1.1.1.tgz#b07f3be7bac1dc099bc43e75f6ae399f552d5a80"
-
 emojione_minimal@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/emojione_minimal/-/emojione_minimal-2.1.2.tgz#48341218174ddc85d790c33671d039e68f75d0f7"
@@ -3350,6 +3346,12 @@ isarray@1.0.0, isarray@^1.0.0, isarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
 
+isemail@^3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/isemail/-/isemail-3.1.1.tgz#e8450fe78ff1b48347db599122adcd0668bd92b5"
+  dependencies:
+    punycode "2.x.x"
+
 isexe@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
@@ -4927,6 +4929,10 @@ punycode@1.3.2:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.3.2.tgz#9653a036fb7c1ee42342f2325cceefea3926c48d"
 
+punycode@2.x.x:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.0.tgz#5f863edc89b96db09074bad7947bf09056ca4e7d"
+
 punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"