diff --git a/parent/pom.xml b/parent/pom.xml
index 6da0d0d8..cc90eca7 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -139,7 +139,7 @@
 		<javax-annotation-api>1.3.2</javax-annotation-api>
 
 		<!-- Used in asciidoc reference documentation -->
-		<releasetrain>2021.2.8</releasetrain>
+		<releasetrain>2021.2.9-SNAPSHOT</releasetrain>
 
 		<!-- To be overridden by individual modules -->
 		<java-module-name/>