diff --git a/requirements_dev.txt b/requirements_dev.txt
index eb17b0a..7a40505 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -30,7 +30,7 @@ isort==4.3.4
 jinja2==2.10
 jsonschema==2.6.0
 lazy-object-proxy==1.3.1
-markupsafe==1.0
+markupsafe==2.0.1
 mccabe==0.6.1
 mimesis==2.0.1
 more-itertools==4.1.0