diff --git a/contrib/ChangeLog b/contrib/ChangeLog
index 77bad5a9cff22ecea521beba55268ae0ca73d8e2..e5ccfe566d0d4cd8f70e56c1b65582340eb42cb4 100644
--- a/contrib/ChangeLog
+++ b/contrib/ChangeLog
@@ -1,3 +1,7 @@
+2014-12-02  Tobias Burnus  <burnus@net-b.de>
+
+	* download_prerequisites: Download ISL 0.14 instead of 0.12.2.
+
 2014-11-25  Tom de Vries  <tom@codesourcery.com>
 	    Peter Bergner  <bergner@vnet.ibm.com>
 
diff --git a/contrib/download_prerequisites b/contrib/download_prerequisites
index a9a9f029af644133873cb6c2e8cb3d07c3473813..50acbf57e0a38ef62e59c0d226297f3f00776156 100755
--- a/contrib/download_prerequisites
+++ b/contrib/download_prerequisites
@@ -43,7 +43,7 @@ ln -sf $MPC mpc || exit 1
 
 # Necessary to build GCC with the Graphite loop optimizations.
 if [ "$GRAPHITE_LOOP_OPT" = "yes" ] ; then
-  ISL=isl-0.12.2
+  ISL=isl-0.14
 
   wget ftp://gcc.gnu.org/pub/gcc/infrastructure/$ISL.tar.bz2 || exit 1
   tar xjf $ISL.tar.bz2  || exit 1