diff --git a/build.py b/build.py
index 0e0c3aa3..13970c84 100755
--- a/build.py
+++ b/build.py
@@ -89,8 +89,8 @@ 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 = '2.0.22'
-wafMD5 = 'f2e5880ba4ecd06f7991181bdba1138b'
+wafCurrentVersion = '2.0.24'
+wafMD5 = '698f382cca34a08323670f34830325c4'
 
 doxygenCurrentVersion = '1.8.8'
 doxygenMD5 = {