diff --git a/ChangeLog b/ChangeLog
index 80908700..0eacb25e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,4 @@
-2013.12.13, Version 0.10.20 (Stable)
+2013.12.13, Version 0.10.20 (Stable), 04141464dd0fba90ace9aa6f7003ce139b888a40
 
 Changes since version 0.10.19:
 
diff --git a/src/version.c b/src/version.c
index 252101eb..0309db00 100644
--- a/src/version.c
+++ b/src/version.c
@@ -34,8 +34,8 @@
 
 #define UV_VERSION_MAJOR 0
 #define UV_VERSION_MINOR 10
-#define UV_VERSION_PATCH 20
-#define UV_VERSION_IS_RELEASE 1
+#define UV_VERSION_PATCH 21
+#define UV_VERSION_IS_RELEASE 0
 
 
 #define UV_VERSION  ((UV_VERSION_MAJOR << 16) | \