diff --git a/AUTHORS b/AUTHORS
index c404880..23c050d 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -13,3 +13,7 @@ Converted the project to be autotools-based.
 4. Ben LeMasurier <ben.lemasurier@gmail.com>
 
 Bugfixes, performance and other improvements.
+
+5. Takeshi Nakatani <ggtakec@gmail.com>
+
+Bugfixes, performance and other improvements.
diff --git a/configure.ac b/configure.ac
index e4626ce..0584f41 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 dnl Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.59)
-AC_INIT(s3fs, 1.72)
+AC_INIT(s3fs, 1.73)
 
 
 AC_CANONICAL_SYSTEM