diff --git a/requirements_dev.txt b/requirements_dev.txt
index 2e1c1e67..6523e0e3 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -9,7 +9,7 @@ PyYAML==3.12
 psycopg2-binary==2.7.4
 aiocontextvars==0.1.2
 sanic==0.7.0
-aiohttp==3.2.1
+aiohttp==3.3.1
 tornado==4.5.3
 async_generator==1.9.0