diff --git a/test-requirements.txt b/test-requirements.txt
index b7614330..e455d2ab 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -4,7 +4,7 @@
 hacking<0.10,>=0.9.2
 coverage>=3.6 # Apache-2.0
 discover # BSD
-gabbi>=1.11.0 # Apache-2.0
+gabbi>=1.11.0,<=1.25.0 # Apache-2.0
 mox3>=0.7.0 # Apache-2.0
 testscenarios>=0.4 # Apache-2.0/BSD
 testrepository>=0.0.18 # Apache-2.0/BSD