diff --git a/pom.xml b/pom.xml
index 6a8494c..98d281d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,7 +11,7 @@
 
   <groupId>de.digitalcollections</groupId>
   <artifactId>iiif-server-demo</artifactId>
-  <version>4.0.0-SNAPSHOT</version>
+  <version>4.0.0</version>
   <packaging>jar</packaging>
 
   <name>DigitalCollections: IIIF Server Demo</name>