diff --git a/requirements/dev.txt b/requirements/dev.txt
index ff9089c..2d85273 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -5,6 +5,6 @@ watchdog==0.10.3
 flake8==3.8.3
 tox==3.19.0
 coverage==5.2.1
-Sphinx==3.2.0
+Sphinx==8.1.2
 cryptography==3.0
 PyYAML==5.3.1