diff --git a/docs/README.rst b/docs/README.rst
index af8bf4297..f6011b2c6 100644
--- a/docs/README.rst
+++ b/docs/README.rst
@@ -15,7 +15,7 @@ and all its dependencies run
 
 ::
 
-    pip install 'Sphinx >= 1.3' sphinx_rtd_theme
+    pip install -r requirements.txt
 
 
 Compile the documentation
diff --git a/docs/requirements.txt b/docs/requirements.txt
new file mode 100644
index 000000000..44e97ceb1
--- /dev/null
+++ b/docs/requirements.txt
@@ -0,0 +1,2 @@
+'Sphinx >= 1.3'
+sphinx_rtd_theme
\ No newline at end of file
diff --git a/tox.ini b/tox.ini
index bbf50b733..6987847f8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -82,8 +82,7 @@ deps = {[testenv:py33]deps}
 [docs]
 changedir = docs
 deps =
-    Sphinx
-    sphinx_rtd_theme
+    -rdocs/requirements.txt
 
 [testenv:docs]
 changedir = {[docs]changedir}