diff --git a/.travis.yml b/.travis.yml
index 73bca138115..667ca86fa50 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,16 +1,18 @@
 language: python
 
-python:
-    - "2.7"
+python: "2.7"
 
 sudo: false
 
-install: 
-    - "pip install -q -r requirements.txt --use-mirrors"
+cache:
+    directories:
+        - $HOME/.cache/pip
+        - _build
+
+install: pip install sphinx==1.1.3
 
 script: sphinx-build -nW -b html -d _build/doctrees . _build/html
 
 branches:
   except:
     - github-comments
-
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 3049177233e..00000000000
--- a/requirements.txt
+++ /dev/null
@@ -1 +0,0 @@
-Sphinx==1.1.3