diff --git a/rebuild b/rebuild
index 862a408..538bb06 100644
--- a/rebuild
+++ b/rebuild
@@ -2,4 +2,4 @@
 # when dependencies of the charm change,
 # but nothing in the charm needs to.
 # simply change the uuid to something new
-6a4e8d66-b54e-11e9-9e21-27ae1864b062
+f57f307b-74f9-4f1d-bdc2-50e20aecbb63
diff --git a/src/layer.yaml b/src/layer.yaml
index 6d94004..71ca0b4 100644
--- a/src/layer.yaml
+++ b/src/layer.yaml
@@ -8,7 +8,8 @@ includes:
 repo: https://github.com/openstack/charm-barbican
 options:
   basic:
-    use_venv: true
+    use_venv: True
+    include_system_packages: False
 config:
   deletes:
     - verbose
diff --git a/src/wheelhouse.txt b/src/wheelhouse.txt
deleted file mode 100644
index 17c1230..0000000
--- a/src/wheelhouse.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-
-jinja2
-psutil