diff --git a/include/v8-version.h b/include/v8-version.h
index 5fb69b9e35..38d0668970 100644
--- a/include/v8-version.h
+++ b/include/v8-version.h
@@ -9,7 +9,7 @@
 // NOTE these macros are used by some of the tool scripts and the build
 // system so their names cannot be changed without changing the scripts.
 #define V8_MAJOR_VERSION 4
-#define V8_MINOR_VERSION 9
+#define V8_MINOR_VERSION 10
 #define V8_BUILD_NUMBER 0
 #define V8_PATCH_LEVEL 0