Fix versioning so it matching previous naming conventions.
diff --git a/pom.xml b/pom.xml
index 01d3afc..47393e4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@
 
   <groupId>org.apache.tomee</groupId>
   <artifactId>jakartaee-api</artifactId>
-  <version>9.1.1-SNAPSHOT</version>
+  <version>9.1-M1-SNAPSHOT</version>
   <packaging>jar</packaging>
 
   <name>Apache TomEE :: Jakarta EE 9 Full API</name>