diff --git a/docs/requirements.txt b/docs/requirements.txt
index 8f15765..f3b7755 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -2,4 +2,5 @@ numpy
 scipy
 pandas
 matplotlib
-Sphinx
\ No newline at end of file
+Sphinx
+sphinx-rtd-theme
\ No newline at end of file