diff --git a/.appveyor.yml b/.appveyor.yml
index 8a83b478a..61817a920 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -25,7 +25,7 @@ install:
   - "pip install -U tox"
 
 test_script:
-  - ps: "tox --recreate -- --cov netlib --cov mitmproxy --cov pathod | Select-String -NotMatch Cryptography_locking_cb"
+  - ps: "tox -- --cov netlib --cov mitmproxy --cov pathod | Select-String -NotMatch Cryptography_locking_cb"
 
 deploy_script:
   ps: |
@@ -41,7 +41,6 @@ deploy_script:
 
 cache:
   - C:\Users\appveyor\AppData\Local\pip\cache
-  - C:\projects\mitmproxy\.tox
 
 notifications:
   - provider: Slack
diff --git a/.travis.yml b/.travis.yml
index 29d0897c9..345d6a588 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -71,8 +71,4 @@ notifications:
       on_failure: change
       on_start: never
 
-cache:
-  directories:
-    - $HOME/build/mitmproxy/mitmproxy/.tox
-    - $HOME/.cache/pip
-    - $HOME/.pyenv
+cache: pip
diff --git a/tox.ini b/tox.ini
index cab23b66c..bbfa438f9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,7 +3,6 @@ envlist = py27, py35, docs, lint
 skipsdist = True
 
 [testenv]
-usedevelop = True
 deps =
   {env:CI_DEPS:}
   -rrequirements.txt
@@ -26,5 +25,4 @@ commands = sphinx-build -W -b html -d {envtmpdir}/doctrees .  {envtmpdir}/html
 
 [testenv:lint]
 deps = flake8>=2.6.2, <3
-usedevelop = False
 commands = flake8 --jobs 8 --count mitmproxy netlib pathod examples test