diff --git a/jollyday-core/pom.xml b/jollyday-core/pom.xml
index 93468dd14..b0822c973 100644
--- a/jollyday-core/pom.xml
+++ b/jollyday-core/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <groupId>de.focus-shift</groupId>
     <artifactId>jollyday</artifactId>
-    <version>0.19.1</version>
+    <version>0.20.0-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/jollyday-jaxb/pom.xml b/jollyday-jaxb/pom.xml
index 881b00d0c..cd944a342 100644
--- a/jollyday-jaxb/pom.xml
+++ b/jollyday-jaxb/pom.xml
@@ -10,7 +10,7 @@
   <parent>
     <groupId>de.focus-shift</groupId>
     <artifactId>jollyday</artifactId>
-    <version>0.19.1</version>
+    <version>0.20.0-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/jollyday-tests/pom.xml b/jollyday-tests/pom.xml
index 05874bddd..78c97f7bc 100644
--- a/jollyday-tests/pom.xml
+++ b/jollyday-tests/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <groupId>de.focus-shift</groupId>
     <artifactId>jollyday</artifactId>
-    <version>0.19.1</version>
+    <version>0.20.0-SNAPSHOT</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/pom.xml b/pom.xml
index 35f9072b3..70300c41e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
   <groupId>de.focus-shift</groupId>
   <artifactId>jollyday</artifactId>
-  <version>0.19.1</version>
+  <version>0.20.0-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <name>Jollyday</name>