diff --git a/docs/requirements.txt b/docs/requirements.txt
index 566e74f..c6ccf58 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -18,4 +18,4 @@ confuse>=2.3.0,<2.4
 python-dotenv
 pyyaml
 
-alabaster<1.0
+alabaster<2.0