diff --git a/theme/epub/layout.html b/theme/epub/layout.html
index d33b7eb2..583d4bf9 100644
--- a/theme/epub/layout.html
+++ b/theme/epub/layout.html
@@ -4,9 +4,9 @@
     <meta charset="utf-8" />
     <meta name="publisher" content="O'Reilly Media, Inc."/>
     <meta name="author" content="Andreas M. Antonopoulos"/>
-    <meta name="date" content="2016-06-21"/>
+    <meta name="date" content="2017-06-19"/>
     <meta name="description" content="Join the technological revolution that’s taking the world of finance by storm. Mastering Bitcoin is your guide through the seemingly complex world of bitcoin, providing the knowledge you need to participate in the internet of money. Whether you’re building the next killer app, investing in a startup, or simply curious about the technology, this revised and expanded second edition provides essential detail to get you started."/>
-    <meta name="identifier" content="9781449374044"/>
+    <meta name="identifier" content="9781491954386"/>
     <title>{{ title }}</title>
   </head>
   <body data-type="book">
