diff --git a/tools/test-requires b/tools/test-requires
index 39234cf206..7f9d344adb 100644
--- a/tools/test-requires
+++ b/tools/test-requires
@@ -7,7 +7,7 @@ docutils==0.9.1
 feedparser
 fixtures>=0.3.12
 flake8==2.0
-hacking>=0.5.3,<0.6
+hacking>=0.5.6,<0.6
 hp3parclient>=1.0.0
 keyring
 ming>=0.3.4