diff --git a/requirements_dev.txt b/requirements_dev.txt
index 23f65b9..1e4bb2e 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,5 +1,5 @@
 alabaster==0.7.8
-argh==0.26.2
+argh==0.31.3
 Babel==2.3.4
 bumpversion==0.5.3
 cffi==1.7.0