diff --git a/include/v8-version.h b/include/v8-version.h
index 5a51e1745e0..f0d44f292f8 100644
--- a/include/v8-version.h
+++ b/include/v8-version.h
@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 5
 #define V8_MINOR_VERSION 8
 #define V8_BUILD_NUMBER 283
-#define V8_PATCH_LEVEL 9
+#define V8_PATCH_LEVEL 10
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)