diff --git a/requirements.txt b/requirements.txt
index 97b4e227..8edd1c06 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 alabaster==0.7.11
-argh==0.26.2
+argh==0.31.3
 arrow==0.12.1
 asn1crypto==0.24.0
 attrs==18.1.0
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 5404d8d3..4d165288 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,5 +1,5 @@
 alabaster==0.7.11
-argh==0.26.2
+argh==0.31.3
 arrow==0.12.1
 asn1crypto==0.24.0
 attrs==18.1.0