diff --git a/requirements_dev.txt b/requirements_dev.txt
index b1b09cc..9dfcd4e 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -4,7 +4,7 @@ watchdog==0.8.3
 flake8==3.5.0
 tox==2.9.1
 coverage==4.4.1
-Sphinx==1.6.5
+Sphinx==8.0.2
 
 pytest==3.2.2
 httpretty==0.8.14