diff --git a/requirements-dev.txt b/requirements-dev.txt
old mode 100755
new mode 100644
index 66c52e4..3df62ea
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -7,5 +7,5 @@ pytest==3.0.3
 py==1.4.31
 pygments==2.1.3
 mock==2.0.0
-requests==2.11.1
+requests==2.20.0
 grpcio-tools==1.4.0