diff --git a/requirements_dev.txt b/requirements_dev.txt
index af9a38f..d512b08 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -10,5 +10,5 @@ PyYAML==3.12
 pytest==3.3.1
 pytest-runner==3.0
 
-requests
+requests==2.18.4
 requests-toolbelt
\ No newline at end of file