diff --git a/requirements/test.txt b/requirements/test.txt
index d9f66988..a503359d 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -5,4 +5,4 @@ coverage>=3.0
 mock
 simplejson
 PyYAML==3.09  # 3.10 dropped 2.4 support
-msgpack-python==0.1.6  # 0.1.7 dropped 2.4 support
+msgpack-python<0.2.0  # 0.2.0 dropped 2.5 support