diff --git a/.travis.yml b/.travis.yml
index b013d8cf..3544fe76 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,43 +1,41 @@
 language: python
 sudo: false
+cache: pip
 env:
   global: TEST_RUNNER=unittest PYTHONHASHSEED=random
 matrix:
   include:
     - python: "2.7"
       env: TEST_REQUIRE="gevent greenlet geventhttpclient fastimport"
     - python: "pypy"
       env: TEST_REQUIRE="fastimport"
     - python: "3.3"
       env: TEST_REQUIRE="gevent greenlet geventhttpclient fastimport"
     - python: "3.4"
       env: TEST_REQUIRE="gevent greenlet geventhttpclient fastimport"
     - python: "3.5"
       env: TEST_REQUIRE="gevent greenlet geventhttpclient fastimport"
     - python: "3.6"
       env: TEST_REQUIRE="gevent greenlet geventhttpclient fastimport"
     - python: "3.5-dev"
       env: TEST_REQUIRE="gevent greenlet geventhttpclient fastimport"
     - python: "3.6"
       env: TEST_REQUIRE="gevent greenlet geventhttpclient fastimport"
     - python: "3.6-dev"
       env: TEST_REQUIRE="gevent greenlet geventhttpclient fastimport"
     - python: "3.7-dev"
       env: TEST_REQUIRE="gevent greenlet geventhttpclient fastimport"
-cache:
-  directories:
-    - $HOME/.cache/pip
 script:
   - pip install pip --upgrade
   - pip install $TEST_REQUIRE
   - pip install coverage codecov
 
   # Test without c extensions
   - python -m coverage run -p --source=dulwich -m $TEST_RUNNER dulwich.tests.test_suite
 
   # Test with c extensions
   - python setup.py build_ext -i
   - python -m coverage run -p --source=dulwich -m $TEST_RUNNER dulwich.tests.test_suite
 after_success:
   - python -m coverage combine
   - codecov