diff --git a/requirements-dev.txt b/requirements-dev.txt
index 3ee27783..8552ec0a 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -8,7 +8,7 @@ flake8==3.7.8
 twine==2.0.0
 coverage==4.5.4
 pytest-cov==2.7.1
-Sphinx==2.2.0
+Sphinx==2.2.1
 sphinx-autobuild==0.7.1
 redis==3.3.11
 Cython==0.29.13