diff --git a/ChangeLog b/ChangeLog
index e478d7d..a24e263 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2013-09-16  Paul Smith  <psmith@gnu.org>
+
+	* configure.ac: Update version to 3.99.91.
+	* NEWS: Ditto.
+
 2013-09-15  Paul Smith  <psmith@gnu.org>
 
 	* doc/make.texi (Error Messages): Add a bit more info to the
diff --git a/NEWS b/NEWS
index c36dab0..b1ec073 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,6 @@
 GNU make NEWS                                               -*-indented-text-*-
   History of user-visible changes.
-  17 May 2013
+  16 Sep 2013
 
 See the end of this file for copyrights and conditions.
 
@@ -9,7 +9,7 @@
 See the README file and the GNU make manual for instructions for
 reporting bugs.
 
-Version 3.99.90
+Version 3.99.91
 
 A complete list of bugs fixed in this version is available here:
 
diff --git a/configure.ac b/configure.ac
index 300096c..09b5ce2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,7 +16,7 @@
 # You should have received a copy of the GNU General Public License along with
 # this program.  If not, see <http://www.gnu.org/licenses/>.
 
-AC_INIT([GNU make],[3.99.90],[bug-make@gnu.org])
+AC_INIT([GNU make],[3.99.91],[bug-make@gnu.org])
 
 AC_PREREQ([2.62])