diff --git a/mex/build/matlab/configure.ac b/mex/build/matlab/configure.ac
index 4a3f115d79d463506c0a6457f20042f1971fd699..ca948b4dba099f07da4484df7401bc7c7209d785 100644
--- a/mex/build/matlab/configure.ac
+++ b/mex/build/matlab/configure.ac
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 
-dnl Copyright (C) 2009-2011 Dynare Team
+dnl Copyright (C) 2009-2012 Dynare Team
 dnl
 dnl This file is part of Dynare.
 dnl
@@ -17,7 +17,7 @@ dnl
 dnl You should have received a copy of the GNU General Public License
 dnl along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 
-AC_PREREQ([2.61])
+AC_PREREQ([2.62])
 AC_INIT([dynare], [4.4-unstable])
 AC_CONFIG_SRCDIR([configure.ac])
 AM_INIT_AUTOMAKE([-Wall -Werror foreign])
diff --git a/mex/build/octave/configure.ac b/mex/build/octave/configure.ac
index 34855798155da65422b3d43aaead3a97fbdbeaed..da3c6e2ac7e6e0ada7ace30c78a3a899ffc50c7f 100644
--- a/mex/build/octave/configure.ac
+++ b/mex/build/octave/configure.ac
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 
-dnl Copyright (C) 2009-2011 Dynare Team
+dnl Copyright (C) 2009-2012 Dynare Team
 dnl
 dnl This file is part of Dynare.
 dnl
@@ -17,7 +17,7 @@ dnl
 dnl You should have received a copy of the GNU General Public License
 dnl along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 
-AC_PREREQ([2.61])
+AC_PREREQ([2.62])
 AC_INIT([dynare], [4.4-unstable])
 AC_CONFIG_SRCDIR([configure.ac])
 AM_INIT_AUTOMAKE([-Wall -Werror foreign])