diff --git a/requirements.txt b/requirements.txt
index 5cf6542d..32e06116 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -51,7 +51,7 @@ lxml==6.0.0
 extras==1.0.0
 python-mimeparse==2.0.0
 fixtures==4.3.0
-testtools==2.8.0
+testtools==2.9.0
 testscenarios==0.5.0
 python-subunit==1.4.0
 sqlparse==0.5.4