diff --git a/Makefile.am b/Makefile.am
index 8f382516..04f48b37 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,8 +5,8 @@
 # See LICENSE for copying information.
 
 # 'foreign' means that we're not enforcing GNU package rules strictly.
-# '1.11.2' means that we need automake 1.11.2 or later (and we do).
-AUTOMAKE_OPTIONS = foreign 1.11.2 subdir-objects
+# '1.13' means that we need automake 1.13 or later (and we do).
+AUTOMAKE_OPTIONS = foreign 1.13 subdir-objects
 
 ACLOCAL_AMFLAGS = -I m4
 
diff --git a/configure.ac b/configure.ac
index 298d3ab9..12938d47 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,7 +6,7 @@ dnl
 dnl Original version Dug Song <dugsong@monkey.org>
 
 AC_INIT(libevent,2.1.11-stable)
-AC_PREREQ(2.62)
+AC_PREREQ(2.67)
 AC_CONFIG_SRCDIR(event.c)
 
 AC_CONFIG_MACRO_DIR([m4])
@@ -126,7 +126,8 @@ AC_ARG_ENABLE([clock-gettime],
   [], [enable_clock_gettime=yes])
 
 
-AC_PROG_LIBTOOL
+LT_PREREQ([2.4.2])
+LT_INIT
 
 dnl   Uncomment "AC_DISABLE_SHARED" to make shared libraries not get
 dnl   built by default.  You can also turn shared libs on and off from