diff --git a/bindings/python/wscript b/bindings/python/wscript
index 39b782c55..1be8d0cac 100644
--- a/bindings/python/wscript
+++ b/bindings/python/wscript
@@ -14,9 +14,9 @@ from waflib.Errors import WafError
 # after = TaskGen.after
 
 # https://github.com/gjcarneiro/pybindgen
-REQUIRED_PYBINDGEN_VERSION = '0.19.0.post4+ng823d8b2'
-REQUIRED_PYGCCXML_VERSION = (1, 9, 0)
-REQUIRED_CASTXML_VERSION = '0.1'
+REQUIRED_PYBINDGEN_VERSION = '0.20.0'
+REQUIRED_PYGCCXML_VERSION = (1, 9, 1)
+REQUIRED_CASTXML_VERSION = '0.2'
 
 RUN_ME=-3