diff --git a/.github/workflows/constraints.txt b/.github/workflows/constraints.txt
index 3cd84e3..18ca4d9 100644
--- a/.github/workflows/constraints.txt
+++ b/.github/workflows/constraints.txt
@@ -2,4 +2,4 @@ pip==22.3.1
 nox==2022.11.21
 nox-poetry==1.0.2
 poetry==1.3.2
-virtualenv==20.17.1
+virtualenv==20.21.0