diff --git a/Docs/src/build.but b/Docs/src/build.but
index b6ec882e..1b918488 100644
--- a/Docs/src/build.but
+++ b/Docs/src/build.but
@@ -6,7 +6,7 @@ NSIS version 2.07 introduced a new build system, based on \W{http://www.scons.or
 
 Source code is available in \W{http://nsis.svn.sourceforge.net/viewvc/nsis/}{SVN} and as a separate package with every \W{http://sourceforge.net/project/showfiles.php?group_id=22049}{NSIS distribution}.
 
-To build NSIS \W{http://www.python.org/}{Python}, \W{http://www.scons.org/}{SCons} must be installed. Currently, the supported version of SCons is version 0.98. Any version of Python above 1.6 is supported.
+To build NSIS \W{http://www.python.org/}{Python}, \W{http://www.scons.org/}{SCons} must be installed. Currently, the supported version of SCons is version 1.2.0 and above. Any version of Python above 1.6 is supported.
 
 NSIS uses the \W{http://zlib.net}{zlib} compression library. As a
 consequence the header and library files of zlib must be installed. 
diff --git a/INSTALL b/INSTALL
index 06983150..e3a762b4 100644
--- a/INSTALL
+++ b/INSTALL
@@ -6,7 +6,7 @@ This is a trimmed version of Appendix "Building NSIS" of the documentation.
  - Requirements
 
    * Python version 1.6 and above (http://www.python.org/)
-   * SCons version 0.98 and above (http://www.scons.org/)
+   * SCons version 1.2.0 and above (http://www.scons.org/)
    * zlib version 1.2.3 and above (http://www.zlib.net/)
    * C compiler
 
diff --git a/SConstruct b/SConstruct
index f8dc3428..e0080f48 100644
--- a/SConstruct
+++ b/SConstruct
@@ -1,4 +1,4 @@
-EnsureSConsVersion(0,98)
+EnsureSConsVersion(1,2)
 	
 stubs = [
 	'bzip2',