diff --git a/ChangeLog b/ChangeLog
index 074f94dcb3..5166ba1d33 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Dec  9 00:21:19 2015  Yuki Nishijima  <mail@yukinishijima.net>
+
+	* gems/bundled_gems: Upgrade the did_you_mean gem to 1.0.0.rc1
+
 Wed Dec  9 00:17:49 2015  Koichi Sasada  <ko1@atdot.net>
 
 	* compile.c (ibf_load_setup): cast to int.
diff --git a/gems/bundled_gems b/gems/bundled_gems
index 720597dbf3..354e591473 100644
--- a/gems/bundled_gems
+++ b/gems/bundled_gems
@@ -3,4 +3,4 @@ test-unit 3.1.5
 minitest 5.8.3
 rake 10.4.2
 net-telnet 0.1.1
-did_you_mean 1.0.0.beta3
+did_you_mean 1.0.0.rc1