diff --git a/.travis.yml b/.travis.yml
index 8455d31..3b9f87e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,6 @@ env:
     - DAV_SERVER=radicale-git
 
 install:
-    - "pip install ."
     - "sh install-deps.sh"
 
 script: py.test
diff --git a/README.md b/README.md
index 57ad626..5f214c2 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,5 @@ Run `vdirsyncer --help`.
 
 ## How to run the tests
 
-    pip install .
     sh install_deps.sh
     py.test
diff --git a/install-deps.sh b/install-deps.sh
index c4e5d56..d130e64 100644
--- a/install-deps.sh
+++ b/install-deps.sh
@@ -1,8 +1,9 @@
-pip install -r requirements.txt
+pip install --use-mirrors .
+pip install --use-mirrors -r requirements.txt
 [[ -z "$DAV_SERVER" ]] && DAV_SERVER=radicale
 case "$DAV_SERVER" in
     "radicale")
-        pip install radicale
+        pip install --use-mirrors radicale
         ;;
     "radicale-git")
         pip install git+https://github.com/Kozea/Radicale.git