diff --git a/global-requirement-pins.txt b/global-requirement-pins.txt
index ec198a797b..784ad64ee9 100644
--- a/global-requirement-pins.txt
+++ b/global-requirement-pins.txt
@@ -16,6 +16,7 @@ Cython<0.28
 ###
 # Bumping pip to version 10 fails in tempest when trying to install
 # packages with an empty list.
+argparse==1.2.1;python_version=='2.7'
 pip==18.0
 setuptools==40.0.0
 wheel==0.31.1