diff --git a/parent/pom.xml b/parent/pom.xml
index 12a1145e..26cb644b 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -137,7 +137,7 @@
 		<javax-annotation-api>1.3.2</javax-annotation-api>
 
 		<!-- Used in asciidoc reference documentation -->
-		<releasetrain>2021.1.8</releasetrain>
+		<releasetrain>2021.1.9-SNAPSHOT</releasetrain>
 
 		<!-- To be overridden by individual modules -->
 		<java-module-name/>