diff --git a/NEWS b/NEWS
index 09d67aa..3c6ed2e 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,10 @@
 TNEF NEWS -- history of user-visible changes.   31 August 2014
 Copyright (C) 2000-2017 by Mark Simpson
 
+* 1.4.15 [28 May 2017]
+** Fix underflow problem
+*** https://github.com/verdammelt/tnef/issues/23
+
 * 1.4.14 [19 March 2017]
 ** Use __builtin_mul_overflow when available.
 ** Fixing Unicode related bugs introduced in previous release.
diff --git a/configure.ac b/configure.ac
index 0b0606f..741b5ac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ(2.59)
-AC_INIT([tnef],[1.4.14],[verdammelt@gmail.com])
+AC_INIT([tnef],[1.4.15],[verdammelt@gmail.com])
 AC_CONFIG_SRCDIR([src/tnef.c])
 AM_INIT_AUTOMAKE
 AC_CONFIG_HEADER([src/config.h])
diff --git a/tests/cmdline/version.baseline b/tests/cmdline/version.baseline
index db21ee0..343e7da 100644
--- a/tests/cmdline/version.baseline
+++ b/tests/cmdline/version.baseline
@@ -1,5 +1,5 @@
 ./../../src/tnef --version
-tnef 1.4.14
+tnef 1.4.15
 Copyright (C) 1999-2017 by Mark Simpson
 Copyright (C) 1997 by Thomas Boll (original code)
 tnef comes with ABSOLUTELY NO WARRANTY.
@@ -8,7 +8,7 @@ Public License.  For more information about these matters, see the file
 named COPYING.
 
 ./../../src/tnef -V
-tnef 1.4.14
+tnef 1.4.15
 Copyright (C) 1999-2017 by Mark Simpson
 Copyright (C) 1997 by Thomas Boll (original code)
 tnef comes with ABSOLUTELY NO WARRANTY.