diff --git a/tensorboard/pip_package/requirements_dev.txt b/tensorboard/pip_package/requirements_dev.txt
index 76908847e2..3937b239a7 100644
--- a/tensorboard/pip_package/requirements_dev.txt
+++ b/tensorboard/pip_package/requirements_dev.txt
@@ -30,4 +30,4 @@ flake8==3.7.8
 yamllint==1.17.0
 
 # For building Pip package
-virtualenv==20.0.31
+virtualenv