diff --git a/ChangeLog b/ChangeLog
index 3bf66a3..5d127e9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-06-04  Bruno Haible  <bruno@clisp.org>
+
+	* preload/Makefile.devel (AUTOCONF): Switch to version 2.63.
+	(ACLOCAL): Switch to version 1.11.
+
 2009-05-19  Bruno Haible  <bruno@clisp.org>
 
 	* Makefile.devel (AUTOMAKE, ACLOCAL): Switch to version 1.11.
diff --git a/preload/Makefile.devel b/preload/Makefile.devel
index 49a3c95..f411571 100644
--- a/preload/Makefile.devel
+++ b/preload/Makefile.devel
@@ -3,8 +3,8 @@
 
 SHELL = /bin/sh
 MAKE = make
-AUTOCONF = autoconf-2.62
-ACLOCAL = aclocal-1.10
+AUTOCONF = autoconf-2.63
+ACLOCAL = aclocal-1.11
 CP = cp
 RM = rm -f