diff --git a/ChangeLog b/ChangeLog
index cb4b9ded56e320414bb7ea86365d2717d89894bd..7f6e1cdcadf4afbe066971436b162bba31bf238d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2010-03-25  Niels M�ller  <nisse@lysator.liu.se>
 
+	* configure.ac: Bumped version numbers. Package version
+	nettle-2.1, library versions libnettle.so.3.1, libhogweed.so.2.0.
+
 	* examples/nettle-benchmark.c (main): Benchmark sha384.
 
 	* testsuite/Makefile.in (TS_NETTLE_SOURCES): Added sha384-test.c.
diff --git a/configure.ac b/configure.ac
index ba4d6756abbd382cadb2759ea2f34c1c5e32f13b..a6fe72d076ac75ee254a1ad0b67865e27f56c0cb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ dnl -*- mode: shell-script; sh-indentation: 2; -*-
 
 dnl Process this file with autoconf to produce a configure script.
 
-AC_INIT([nettle], [2.0], [nettle-bugs@lists.lysator.liu.se])
+AC_INIT([nettle], [2.1], [nettle-bugs@lists.lysator.liu.se])
 AC_PREREQ(2.61)
 AC_CONFIG_SRCDIR([arcfour.c])
 # Needed to stop autoconf from looking for files in parent directories.
@@ -11,10 +11,10 @@ AC_CONFIG_AUX_DIR([.])
 AC_CONFIG_HEADER([config.h])
 
 LIBNETTLE_MAJOR=3
-LIBNETTLE_MINOR=0
+LIBNETTLE_MINOR=1
 
-LIBHOGWEED_MAJOR=1
-LIBHOGWEED_MINOR=1
+LIBHOGWEED_MAJOR=2
+LIBHOGWEED_MINOR=0
 
 AC_CANONICAL_HOST
 
diff --git a/nettle.texinfo b/nettle.texinfo
index f8c7c698c70f5d04a88c53c43039aeceed6225e8..fcdd7b5161482b73116d87198ece2bf16a3307aa 100644
--- a/nettle.texinfo
+++ b/nettle.texinfo
@@ -7,7 +7,7 @@
 @syncodeindex fn cp
 @c %**end of header
 
-@set UPDATED-FOR 2.5
+@set UPDATED-FOR 2.1
 @set AUTHOR Niels M�ller
 
 @copying