diff --git a/tests-venv b/smoke/venv.sh
similarity index 94%
rename from tests-venv
rename to smoke/venv.sh
index bb36258..b20291f 100755
--- a/tests-venv
+++ b/smoke/venv.sh
@@ -1,7 +1,7 @@
 #!/bin/sh -eux
 
-# TODO set this from outside depending on the package
-VERSION=3.7
+# set python version
+VERSION=${VERSION:-3.7}
 PYTHON=python$VERSION
 
 # clean from possible older runs