diff --git a/ext/etc/etc.c b/ext/etc/etc.c
index 0951d667f7..7e9c88259a 100644
--- a/ext/etc/etc.c
+++ b/ext/etc/etc.c
@@ -52,7 +52,7 @@ char *getenv();
 #endif
 char *getlogin();
 
-#define RUBY_ETC_VERSION "1.3.0"
+#define RUBY_ETC_VERSION "1.3.1"
 
 #ifdef HAVE_RB_DEPRECATE_CONSTANT
 void rb_deprecate_constant(VALUE mod, const char *name);