diff --git a/requirements.txt b/requirements.txt
index 35b168d..caa0a50 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ sphinx-tabs==1.3.0
 falcon==2.0.0  # used in Sphinx extensions to get status codes names
 
 # dev dependencies
-sphinx-autobuild==2020.9.1
+sphinx-autobuild==2021.3.14
 sphinx-rtd-theme==0.5.0
 pylama==7.7.1
 pytest==5.4.3