diff --git a/History.md b/History.md
index cb8e0846b4f646a9c29c63db2efa66c6e87640f2..d43ca8e7b435dc29d158aa039a4a8899d034eec1 100755
--- a/History.md
+++ b/History.md
@@ -1,4 +1,4 @@
-=== 1.6.38 / YYYY-MM-DD
+=== 1.6.38 / 2017-07-27
 
 * Update dependent libraries for Windows binary gem.
 * Replace libjpeg-9b by libjpeg-turbo-1.5.2 on Windows binary gem.