diff --git a/README b/README
index 9a4fd08..2d7f677 100644
--- a/README
+++ b/README
@@ -47,8 +47,8 @@ On Ubuntu 10.04 you can install all the required libraries via:
 
  % sudo apt-get install \
      g++ \
-     libboost1.41-dev \
-     libboost-thread1.41-dev \
+     libboost1.40-dev \
+     libboost-thread1.40-dev \
      scons \
      libusb-dev \
      git-core \
diff --git a/debian/control b/debian/control
index 8bf7083..00ea001 100644
--- a/debian/control
+++ b/debian/control
@@ -2,7 +2,7 @@ Source: xboxdrv
 Section: utils
 Priority: extra
 Maintainer: Ingo Ruhnke <grumbel@gmx.de>
-Build-Depends: debhelper (>= 7), scons, libboost1.41-dev, libusb-dev, libx11-dev, x11proto-core-dev, scons, g++, libboost-thread1.41-dev, x11proto-core-dev, python-dbus
+Build-Depends: debhelper (>= 7), scons, libusb-dev, libx11-dev, x11proto-core-dev, scons, g++, libboost1.40-dev, libboost-thread1.40-dev, x11proto-core-dev, python-dbus
 Standards-Version: 3.8.0
 Homepage: http://pingus.seul.org/~grumbel/xboxdrv/