diff --git a/package.json b/package.json
index 1e504175a01d00b8a276bb7d68daef41f4ab29b6..5fdaa82e45b0033a0d7225d3b282e634462f8b3a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "itc-ng",
-  "version": "3.0.3",
+  "version": "3.1.0",
   "license": "MIT",
   "repository": {
     "type": "git",
diff --git a/src/environments/environment.build.ts b/src/environments/environment.build.ts
index 52e9d22d163bc4fc2c7fe7adda8652071d64e6a2..0ac72b911f35884a5c7593e19a56c2260cf444f6 100644
--- a/src/environments/environment.build.ts
+++ b/src/environments/environment.build.ts
@@ -4,5 +4,5 @@ export const environment = {
   production: false,
   testcenterUrl: '/',
   appPublisher: 'IQB - Institut zur Qualitätsentwicklung im Bildungswesen',
-  apiVersionExpected: '4.0.0'
+  apiVersionExpected: '5.0.0'
 };
diff --git a/src/environments/environment.prod.ts b/src/environments/environment.prod.ts
index c7cfe2f7f62011eb614bd75fb5b60e98badd7788..9d36571744f510c6e33b9724276a98508c375311 100644
--- a/src/environments/environment.prod.ts
+++ b/src/environments/environment.prod.ts
@@ -4,5 +4,5 @@ export const environment = {
   production: true,
   testcenterUrl: '/api/',
   appPublisher: 'IQB - Institut zur Qualitätsentwicklung im Bildungswesen',
-  apiVersionExpected: '4.0.0'
+  apiVersionExpected: '5.0.0'
 };
diff --git a/src/environments/environment.ts b/src/environments/environment.ts
index e58c2bdd5e836ecd090e2114feee52034a4a0d5f..fab00d9e2e9ed3f5a8d1f3ac4fb88ff1036c34c6 100644
--- a/src/environments/environment.ts
+++ b/src/environments/environment.ts
@@ -10,7 +10,7 @@ export const environment = {
   // testcenterUrl: 'https://www.iqb-testcenter.de/',
   // testcenterUrl: 'http://localhost/api/',
   appPublisher: 'IQB - Institut zur Qualitätsentwicklung im Bildungswesen',
-  apiVersionExpected: '4.0.0'
+  apiVersionExpected: '5.0.0'
 };
 
 /*