diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index b58f949d7b937ed30e9a30d8c38f8472ba92feb9..db493cf1f2f4ec4e01f2694e9379633c886625e1 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3.1.0
+current_version = 4.0.0
 commit = True
 tag = True
 tag_name = {new_version}
diff --git a/hbp.yml b/hbp.yml
index dc6d6c21c9e8dc09d156c549bfddb02439b6f5f7..652137b8e1a84aaaaec9d15a2768537f7c58cc1d 100644
--- a/hbp.yml
+++ b/hbp.yml
@@ -58,9 +58,9 @@ testing:
     command: ./test.sh
 
 release_management:
-  current_version: 3.1.0
-  current_code_release: https://github.com/HBPMedical/portal-backend/archive/3.1.0.zip
-  current_binary_release: https://pypi.python.org/pypi/portal-backend/3.1.0
+  current_version: 4.0.0
+  current_code_release: https://github.com/HBPMedical/portal-backend/archive/4.0.0.zip
+  current_binary_release: https://pypi.python.org/pypi/portal-backend/4.0.0
   release_script: 'publish.sh'
 
 continuous_integration:
@@ -75,10 +75,10 @@ continuous_integration:
 distribution:
   docker_hub:
     name: hbpmip/portal-backend
-    current_tag: 3.1.0
+    current_tag: 4.0.0
     url: https://hub.docker.com/r/hbpmip/portal-backend/
     badge: https://img.shields.io/badge/docker-hbpmip%2Fportal--backend-008bb8.svg
-    command: docker pull hbpmip/portal-backend:3.1.0
+    command: docker pull hbpmip/portal-backend:4.0.0
 
 planning:
   github:
diff --git a/pom.xml b/pom.xml
index 356f9c93a63d2f6368d0d95152d741a87ec24841..090b6332752198b0075c24f8c4b42085606d1772 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>eu.hbp.mip</groupId>
     <artifactId>portal-backend</artifactId>
-    <version>3.1.0</version><!-- BUMP_VERSION -->
+    <version>4.0.0</version><!-- BUMP_VERSION -->
     <packaging>jar</packaging>
 
     <name>portal-backend</name>