diff --git a/tools/bison/Makefile b/tools/bison/Makefile
index 01820e2755..8cc787148d 100644
--- a/tools/bison/Makefile
+++ b/tools/bison/Makefile
@@ -1,5 +1,5 @@
 # 
-# Copyright (C) 2008 OpenWrt.org
+# Copyright (C) 2008-2012 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -7,11 +7,11 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=bison
-PKG_VERSION:=2.4.3
+PKG_VERSION:=2.5
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=@GNU/$(PKG_NAME)
-PKG_MD5SUM:=c1d3ea81bc370dbd43b6f0b2cd21287e
+PKG_MD5SUM:=9dba20116b13fc61a0846b0058fbe004
 PKG_CAT:=bzcat
 
 include $(INCLUDE_DIR)/host-build.mk
diff --git a/tools/bison/patches/000-relocatable.patch b/tools/bison/patches/000-relocatable.patch
index f83bb1e7ee..50dca6d33e 100644
--- a/tools/bison/patches/000-relocatable.patch
+++ b/tools/bison/patches/000-relocatable.patch
@@ -1,6 +1,6 @@
 --- a/src/Makefile.am
 +++ b/src/Makefile.am
-@@ -77,6 +77,7 @@ MOSTLYCLEANFILES = yacc
+@@ -81,6 +81,7 @@ MOSTLYCLEANFILES = yacc
  
  yacc:
  	echo '#! /bin/sh' >$@
@@ -10,7 +10,7 @@
  
 --- a/src/Makefile.in
 +++ b/src/Makefile.in
-@@ -1352,6 +1352,7 @@ uninstall-am: uninstall-binPROGRAMS unin
+@@ -1609,6 +1609,7 @@ uninstall-am: uninstall-binPROGRAMS unin
  
  yacc:
  	echo '#! /bin/sh' >$@
diff --git a/tools/bison/patches/010-intl-stub-compat.patch b/tools/bison/patches/010-intl-stub-compat.patch
index 7690e10ed8..2cd720b68c 100644
--- a/tools/bison/patches/010-intl-stub-compat.patch
+++ b/tools/bison/patches/010-intl-stub-compat.patch
@@ -1,6 +1,6 @@
 --- a/src/main.c
 +++ b/src/main.c
-@@ -57,9 +57,9 @@ main (int argc, char *argv[])
+@@ -58,9 +58,9 @@ main (int argc, char *argv[])
  {
    program_name = argv[0];
    setlocale (LC_ALL, "");
@@ -12,4 +12,4 @@
 +  textdomain (PACKAGE);
  
    uniqstrs_new ();
- 
+   muscle_init ();