diff --git a/README.md b/README.md
index 4a8c28ac37eec896ef080dd76348ab78e3b0d08c..e5d83aed15e1570bab57d3e79c7a3499e48e196d 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,9 @@
 # Welcome
 
 This is the **CaosDB Advanced User Tools** repository and a part of the
-CaosDB project.
+CaosDB project. This project contains tools that are beyond the typical use of
+the CaosDB python client. Especially, this includes the crawler which will
+typically be used by a data curator.
 
 # Setup
 
diff --git a/tox.ini b/tox.ini
index 74d8c643c735b0ad287e36aa1841bf8a6f5d328c..5b51a29caaabb3a196d94d375b8ca65293e01223 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,8 +1,8 @@
 [tox]
-envlist= py27, py34, py35, py36
+envlist= py37
 skip_missing_interpreters = true
 [testenv]
 deps=nose
     pytest
     pytest-cov
-commands=py.test --cov=caosdb -vv {posargs}
+commands=py.test {posargs}