diff --git a/.github/workflows/constraints.txt b/.github/workflows/constraints.txt
index 73e83b58..a36b63e8 100644
--- a/.github/workflows/constraints.txt
+++ b/.github/workflows/constraints.txt
@@ -2,4 +2,4 @@ pip==21.2.4
 nox==2021.6.12
 nox-poetry==0.8.6
 poetry==1.1.8
-virtualenv==20.7.2
+virtualenv==20.20.0