diff --git a/Changelog.md b/Changelog.md
index 9fd1b389..2bffeb6e 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## v0.5.0
+
+*Unknown*
+
+
 ## v0.4.0 
 
 *Mar. 29, 2020*
diff --git a/modules/joexapi/src/main/resources/joex-openapi.yml b/modules/joexapi/src/main/resources/joex-openapi.yml
index 67050fca..96343e4c 100644
--- a/modules/joexapi/src/main/resources/joex-openapi.yml
+++ b/modules/joexapi/src/main/resources/joex-openapi.yml
@@ -2,7 +2,7 @@ openapi: 3.0.0
 
 info:
   title: Docspell JOEX
-  version: 0.4.0
+  version: 0.5.0-SNAPSHOT
 
 servers:
   - url: /api/v1
diff --git a/modules/restapi/src/main/resources/docspell-openapi.yml b/modules/restapi/src/main/resources/docspell-openapi.yml
index 2cf439f3..6df8f26a 100644
--- a/modules/restapi/src/main/resources/docspell-openapi.yml
+++ b/modules/restapi/src/main/resources/docspell-openapi.yml
@@ -2,7 +2,7 @@ openapi: 3.0.0
 
 info:
   title: Docspell
-  version: 0.4.0
+  version: 0.5.0-SNAPSHOT
   description: |
     This is the remote API to Docspell, a personal document organizer.
 
diff --git a/version.sbt b/version.sbt
index 9f0e5a53..404aa03e 100644
--- a/version.sbt
+++ b/version.sbt
@@ -1 +1 @@
-version in ThisBuild := "0.4.0"
+version in ThisBuild := "0.5.0-SNAPSHOT"