diff --git a/ChangeLog b/ChangeLog
index 2976ed6..4417bca 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2018-05-10  NIIBE Yutaka  <gniibe@fsij.org>
 
+	* VERSION: 1.2.10.
+
 	* src/Makefile (build/gnuk.elf): New target.
 	(build/gnuk-vidpid.elf): Remove.
 
diff --git a/VERSION b/VERSION
index 8368971..93b76e2 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-release/1.2.9
+release/1.2.10