diff --git a/NEWS.md b/NEWS.md
index ed40324674..2b1e296380 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -108,6 +108,7 @@ The following default gems are updated.
 * time 0.4.0
 * uri 0.13.1
 * win32ole 1.9.0
+* yaml 0.4.0
 * zlib 3.1.1
 
 The following bundled gem is added.