diff --git a/roles/wsgi_website/molecule/default/playbook.yml b/roles/wsgi_website/molecule/default/playbook.yml
index 8a81844fdda1250c2d8a1696fc3d8847f4546406..8773c81470270e67a72342f17e199e8c129e11eb 100644
--- a/roles/wsgi_website/molecule/default/playbook.yml
+++ b/roles/wsgi_website/molecule/default/playbook.yml
@@ -52,9 +52,17 @@
       uid: 5001
       use_paste: false
       virtualenv_packages:
-        - dnspython==1.15.0,<1.20.0
+        # Main packages.
+        - dnspython==1.15.0
         - ptpython==0.41
         - prompt-toolkit==1.0.15
+        # Dependencies.
+        - docopt==0.6.2
+        - jedi==0.13.1
+        - parso==0.3.1
+        - Pygments==2.2.0
+        - six==1.11.0
+        - wcwidth==0.1.7
       website_mail_recipients: user
       wsgi_application: testapp:application
       wsgi_requirements: []
diff --git a/roles/wsgi_website/molecule/default/tests/test_default.py b/roles/wsgi_website/molecule/default/tests/test_default.py
index e239e277f975e9b6c4b3d6bdf46d2dd1ad22e97c..cc532c662922df9886e97c657d7987bfb2e2e1a6 100644
--- a/roles/wsgi_website/molecule/default/tests/test_default.py
+++ b/roles/wsgi_website/molecule/default/tests/test_default.py
@@ -309,7 +309,7 @@ def test_python_virtualenv_wrapper_script(host, wrapper_script, expected_owner,
         "docopt==0.6.2",
         "futures==3.1.0",
         "gunicorn==19.7.0",
-        "jedi==0.12.1",
+        "jedi==0.13.1",
         "parso==0.3.1",
         "prompt-toolkit==1.0.15",
         "ptpython==0.41",