diff --git a/WHATS_NEW b/WHATS_NEW
index 18ffe68e7..8c94e32d1 100644
--- a/WHATS_NEW
+++ b/WHATS_NEW
@@ -1,5 +1,6 @@
 Version 2.02.62 -
 ====================================
+  Increase AC_PREREQ version to 2.61 (for AC_PROC_SED, AC_PROG_MKDIR_P).
   Handle a misaligned device that reports a -1 alignment_offset.
   Extend core allocation code in preparation for mirrored log areas.
   Rewrite clvmd init script.
diff --git a/configure.in b/configure.in
index aaa21c625..9ccde9464 100644
--- a/configure.in
+++ b/configure.in
@@ -11,7 +11,7 @@
 ## Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 ################################################################################
 
-AC_PREREQ(2.57)
+AC_PREREQ(2.61)
 ################################################################################
 dnl -- Process this file with autoconf to produce a configure script.
 AC_INIT