diff --git a/tox.ini b/tox.ini
index 9d750ebc1..0c3c58f8d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -161,7 +161,7 @@ deps =
     flake8-mock==0.2
     flake8-pep3101==0.3
     flake8-putty==0.3.2
-    flake8-string-format==0.2.1
+    flake8-string-format==0.2.2
     flake8-tidy-imports==1.0.0
     flake8-tuple==0.2.9
     hacking==0.11.0