diff --git a/test-requirements.txt b/test-requirements.txt
index 524daf4..c0be415 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -3,5 +3,6 @@ coverage==3.7.1
 mock==1.0.1
 flake8==2.1.0
 # No version required
-charm-tools
+charm-tools>=2.0.0
 os-testr
+requests==2.6.0
diff --git a/tox.ini b/tox.ini
index ac60278..03c24fd 100644
--- a/tox.ini
+++ b/tox.ini
@@ -21,7 +21,7 @@ basepython = python2.7
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands = flake8 {posargs} hooks unit_tests tests
-           charm proof
+           charm-proof
 
 [testenv:venv]
 commands = {posargs}