diff --git a/requirements_dev.txt b/requirements_dev.txt
index 37e4b1f..2906880 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -4,7 +4,7 @@ bumpversion==0.5.3
 coverage==5.0.3
 tox==3.14.5
 
-sphinx==2.4.1
+sphinx==2.4.2
 sphinx_rtd_theme==0.4.3
 watchdog==0.10.2
 twine==3.1.1