diff --git a/java/version.bzl b/java/version.bzl
index fc80de333747f..84652c8472fa7 100644
--- a/java/version.bzl
+++ b/java/version.bzl
@@ -1,2 +1,2 @@
-SE_VERSION = "4.20.0"
+SE_VERSION = "4.21.0-SNAPSHOT"
 TOOLS_JAVA_VERSION = "17"