diff --git a/requirements_dev.txt b/requirements_dev.txt
index 8e2623b..1c6fb02 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -8,7 +8,7 @@ coverage==4.5.1
 Sphinx==1.8.1
 twine==1.12.1
 flask
-boto3
+boto3==1.35.74
 
 pytest==3.8.2
 pytest-mock==1.12.1