diff --git a/.python-virtualenv.metadata b/.python-virtualenv.metadata
new file mode 100644
index 0000000..eba3f82
--- /dev/null
+++ b/.python-virtualenv.metadata
@@ -0,0 +1 @@
+c157b25cbb87c1183cbb940bce6a2fd4c709c88d virtualenv-20.4.0.tar.gz
diff --git a/dead.package b/dead.package
new file mode 100644
index 0000000..f691fb7
--- /dev/null
+++ b/dead.package
@@ -0,0 +1 @@
+python-virtualenv package is retired on c9s for CS-569