diff --git a/docs/requirements.txt b/docs/requirements.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6c5d5d44e78ada9ae8ccbf17ec4f3bc72779ced0
--- /dev/null
+++ b/docs/requirements.txt
@@ -0,0 +1 @@
+sphinx-rtd-theme