diff --git a/backend/.env.dist b/backend/.env.dist
index f4ef4e3d4..033417025 100644
--- a/backend/.env.dist
+++ b/backend/.env.dist
@@ -1,9 +1,9 @@
-CONFIG_VERSION=v3.2022-03-29
+CONFIG_VERSION=v4.2022-04-05
 
 # Server
 PORT=4000
 JWT_SECRET=secret123
-JWT_EXPIRES_IN=10m
+JWT_EXPIRES_IN=30m
 GRAPHIQL=false
 GDT_API_URL=https://gdt.gradido.net
 
diff --git a/backend/.env.template b/backend/.env.template
index 66cac7a7c..011e413df 100644
--- a/backend/.env.template
+++ b/backend/.env.template
@@ -2,7 +2,7 @@ CONFIG_VERSION=$BACKEND_CONFIG_VERSION
 
 # Server
 JWT_SECRET=$JWT_SECRET
-JWT_EXPIRES_IN=10m
+JWT_EXPIRES_IN=$JWT_EXPIRES_IN
 GRAPHIQL=false
 GDT_API_URL=$GDT_API_URL
 
diff --git a/backend/src/config/index.ts b/backend/src/config/index.ts
index 50388d29a..fe9b40ccc 100644
--- a/backend/src/config/index.ts
+++ b/backend/src/config/index.ts
@@ -14,7 +14,7 @@ const constants = {
   DECAY_START_TIME: new Date('2021-05-13 17:46:31'), // GMT+0
   CONFIG_VERSION: {
     DEFAULT: 'DEFAULT',
-    EXPECTED: 'v3.2022-03-29',
+    EXPECTED: 'v4.2022-04-05',
     CURRENT: '',
   },
 }
@@ -22,7 +22,7 @@ const constants = {
 const server = {
   PORT: process.env.PORT || 4000,
   JWT_SECRET: process.env.JWT_SECRET || 'secret123',
-  JWT_EXPIRES_IN: process.env.JWT_EXPIRES_IN || '10m',
+  JWT_EXPIRES_IN: process.env.JWT_EXPIRES_IN || '30m',
   GRAPHIQL: process.env.GRAPHIQL === 'true' || false,
   GDT_API_URL: process.env.GDT_API_URL || 'https://gdt.gradido.net',
   PRODUCTION: process.env.NODE_ENV === 'production' || false,