diff --git a/include/v8-version.h b/include/v8-version.h
index 747b82e..c19f14a 100644
--- a/include/v8-version.h
+++ b/include/v8-version.h
@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 4
 #define V8_MINOR_VERSION 8
 #define V8_BUILD_NUMBER 271
-#define V8_PATCH_LEVEL 18
+#define V8_PATCH_LEVEL 19
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)