diff --git a/requirements/dev.txt b/requirements/dev.txt
old mode 100755
new mode 100644
index 014a5a2..24a2dd6
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -4,4 +4,4 @@ pytest==4.2.0
 pytest-flakes==4.0.0
 pytest-pythonpath==0.7.3
 pip-tools==3.6.1
-aiohttp==3.5.4
\ No newline at end of file
+aiohttp==3.7.4
\ No newline at end of file