diff --git a/build.py b/build.py
index 7cc97f10..ce5e7af2 100755
--- a/build.py
+++ b/build.py
@@ -90,8 +90,8 @@ wxICON = 'packaging/docset/mondrian.png'
 
 # Some tools will be downloaded for the builds. These are the versions and
 # MD5s of the tool binaries currently in use.
-wafCurrentVersion = '2.0.24'
-wafMD5 = '698f382cca34a08323670f34830325c4'
+wafCurrentVersion = '2.1.2'
+wafMD5 = '8ff717c068819e488a337030ec8abf6c'
 
 doxygenCurrentVersion = '1.8.8'
 doxygenMD5 = {