diff --git a/configure.ac b/configure.ac
index 5e7cea34f230b56da3e64506a7ce038022f8033e..c42debf8ed05d3b55adfce7077980020b7774e7c 100755
--- a/configure.ac
+++ b/configure.ac
@@ -18,7 +18,7 @@ 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([2.62])
-AC_INIT([dynare], [4.4-unstable])
+AC_INIT([dynare], [4.5-unstable])
 AC_CONFIG_SRCDIR([preprocessor/DynareMain.cc])
 AM_INIT_AUTOMAKE([1.11 -Wall -Wno-portability foreign no-dist-gzip dist-xz tar-pax])
 
diff --git a/mex/build/matlab/configure.ac b/mex/build/matlab/configure.ac
index 5df7fcf38b840c70dad13051d011c11343368734..213dd1628c37524a911b3f3316f2ca1e51e7fa88 100644
--- a/mex/build/matlab/configure.ac
+++ b/mex/build/matlab/configure.ac
@@ -18,7 +18,7 @@ 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([2.62])
-AC_INIT([dynare], [4.4-unstable])
+AC_INIT([dynare], [4.5-unstable])
 AC_CONFIG_SRCDIR([configure.ac])
 AM_INIT_AUTOMAKE([-Wall -Wno-portability foreign])
 
diff --git a/mex/build/octave/configure.ac b/mex/build/octave/configure.ac
index de5a80e820fd1d5abc01ece15c97cc9ec127fc0d..92526cb5cc5dba0ffaf4216be59d1763bc51b69b 100755
--- a/mex/build/octave/configure.ac
+++ b/mex/build/octave/configure.ac
@@ -18,7 +18,7 @@ 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([2.62])
-AC_INIT([dynare], [4.4-unstable])
+AC_INIT([dynare], [4.5-unstable])
 AC_CONFIG_SRCDIR([configure.ac])
 AM_INIT_AUTOMAKE([-Wall -Wno-portability foreign])