diff --git a/tox.ini b/tox.ini
index 84f63e1..ec0faea 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,6 +3,7 @@ envlist = py26, py27, py31, py32, py33, pypy
 
 [base]
 deps =
+  sqlalchemy
   nose-cov
   pam
   requests
@@ -13,21 +14,26 @@ commands = nosetests []
 [testenv:py26]
 deps =
   python-ldap
+  dulwich
   {[base]deps}
 
 [testenv:py27]
 deps =
   python-ldap
+  dulwich
   {[base]deps}
 
-[testenv:py31]
-deps = {[base]deps}
-
 [testenv:py32]
-deps = {[base]deps}
+deps =
+  git+https://github.com/eberle1080/dulwich-py3k.git
+  {[base]deps}
 
 [testenv:py33]
-deps = {[base]deps}
+deps =
+  git+https://github.com/eberle1080/dulwich-py3k.git
+  {[base]deps}
 
 [testenv:pypy]
-deps = {[base]deps}
+deps =
+  dulwich
+  {[base]deps}