diff --git a/requirements.txt b/requirements.txt
index 84fe4f7..c4f58a0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,6 @@ MarkupSafe==0.23
 PyYAML==3.11
 Pygments==2.0.2
 Sphinx==1.3.1
-sphinxcontrib-phpdomain==0.1.4
 alabaster==0.7.6
 argh==0.26.1
 argparse==1.2.1
@@ -20,4 +19,4 @@ snowballstemmer==1.2.0
 sphinx-autobuild==0.5.2
 sphinx-rtd-theme==0.1.8
 wheel==0.24.0
-sphinx-intl==0.9.5
\ No newline at end of file
+sphinx-intl==0.9.5