diff --git a/.travis.yml b/.travis.yml
index 4f7a68dbf5ba35d19b8cac477caf71c99fcd6b52..2189b284e0d143f6db92d5401ffd32a29c240e02 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,8 +4,10 @@ python:
     - "2.6"
     - "2.7"
     - "3.2"
+    - "pypy"
 install:
-    - pip install --use-mirrors -r tests/travis/requirements-${TRAVIS_PYTHON_VERSION}.txt
+    - if [ "$TRAVIS_PYTHON_VERSION" == "2.5" ]; then pip --quiet install unittest2; fi
+    - if [ "$TRAVIS_PYTHON_VERSION" == "2.6" ]; then pip --quiet install unittest2; fi
     - python setup.py install
 script:
     - python setup.py test
diff --git a/tests/travis/requirements-2.5.txt b/tests/travis/requirements-2.5.txt
deleted file mode 100644
index 9a23970d3adfeed83eec1d89fbe27062de0b1bfa..0000000000000000000000000000000000000000
--- a/tests/travis/requirements-2.5.txt
+++ /dev/null
@@ -1 +0,0 @@
-unittest2
diff --git a/tests/travis/requirements-2.6.txt b/tests/travis/requirements-2.6.txt
deleted file mode 100644
index 9a23970d3adfeed83eec1d89fbe27062de0b1bfa..0000000000000000000000000000000000000000
--- a/tests/travis/requirements-2.6.txt
+++ /dev/null
@@ -1 +0,0 @@
-unittest2
diff --git a/tests/travis/requirements-2.7.txt b/tests/travis/requirements-2.7.txt
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/tests/travis/requirements-3.2.txt b/tests/travis/requirements-3.2.txt
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000