diff --git a/version.h b/version.h
index 60a09d750e..2d4393b36d 100644
--- a/version.h
+++ b/version.h
@@ -1,4 +1,4 @@
-#define RUBY_VERSION "2.4.0"
+#define RUBY_VERSION "2.5.0"
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
 #define RUBY_PATCHLEVEL -1