diff --git a/modules/joexapi/src/main/resources/joex-openapi.yml b/modules/joexapi/src/main/resources/joex-openapi.yml
index 64654227..f5260666 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: 0.20.0
+  version: 0.21.0-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 a2eb39fe..8623ade1 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: 0.20.0
+  version: 0.21.0-SNAPSHOT
   description: |
     This is the remote API to Docspell, a personal document organizer.
 
diff --git a/version.sbt b/version.sbt
index 163659bd..ca234a13 100644
--- a/version.sbt
+++ b/version.sbt
@@ -1 +1 @@
-version in ThisBuild := "0.20.0"
+version in ThisBuild := "0.21.0-SNAPSHOT"
diff --git a/website/site/config.toml b/website/site/config.toml
index 137b0fef..aeb9a376 100644
--- a/website/site/config.toml
+++ b/website/site/config.toml
@@ -26,4 +26,4 @@ skip_anchor_prefixes = [
 
 [extra]
 # Put all your custom variables here
-version = "0.20.0"
+version = "0.21.0-SNAPSHOT"