diff --git a/requirements_dev.txt b/requirements_dev.txt
index 15bcedc..dcdc3e0 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -5,4 +5,4 @@ pytest==4.4.1
 pytest-cov==2.6.1
 coveralls==1.7.0
 sphinx==2.0.1
-bump2version==0.5.10
+bump2version==0.5.11