diff --git a/requirements.txt b/requirements.txt
index deab452..2d3832e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-sphinx>=1.4,<2.0
-sphinx_rtd_theme>=0.2.4,<1.0
+sphinx>=1.7.4,<2.0
+sphinx_rtd_theme>=0.3.1,<1.0
 git+https://github.com/fabpot/sphinx-php.git