1 files changed, 1 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index 6d12050..3cf573e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,6 +4,7 @@ envlist = py36,pep8,lint,docs,docs-linkcheck
 skipsdist = True
 
 [testenv]
+pip_version = pip==20.2.4
 usedevelop = True
 install_command = pip install -U {opts} {packages}
 setenv =