diff --git a/.github/workflows/constraints.txt b/.github/workflows/constraints.txt
index b16b447..b1ddcec 100644
--- a/.github/workflows/constraints.txt
+++ b/.github/workflows/constraints.txt
@@ -2,5 +2,5 @@ pip==23.0.1
 nox==2022.11.21
 nox-poetry==1.0.2
 poetry==1.4.0
-virtualenv==20.20.0
+virtualenv==20.21.0
 toml==0.10.2