diff --git a/docs/requirements.txt b/docs/requirements.txt
index e9da5f7..a4301f0 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,2 +1,2 @@
-sphinx==3.3.0
-sphinx-rtd-theme==0.5.0
+sphinx
+sphinx-rtd-theme