diff --git a/requirements-development.txt b/requirements-development.txt
index f25396ea..a8a0ba16 100644
--- a/requirements-development.txt
+++ b/requirements-development.txt
@@ -13,6 +13,6 @@ pytest-cov==2.6.1
 pytest-django==3.4.8
 pytest-factoryboy==2.0.2
 recommonmark==0.5.0
-Sphinx==1.8.4
+Sphinx==1.8.5
 sphinx_rtd_theme==0.4.3
 twine==1.13.0