diff --git a/spring-cloud-function.xml b/spring-cloud-function.xml
index d162f5e13..23a1ce628 100644
--- a/spring-cloud-function.xml
+++ b/spring-cloud-function.xml
@@ -4,7 +4,7 @@
 <book xmlns="http://docbook.org/ns/docbook" xmlns:xl="http://www.w3.org/1999/xlink" version="5.0" xml:lang="en">
 <info>
 <title>Spring Cloud Function</title>
-<date>2018-12-20</date>
+<date>2018-12-21</date>
 </info>
 <preface>
 <title></title>