diff --git a/eng/dependency_tools.txt b/eng/dependency_tools.txt
index 3ccc2ab48ce5..39dcb2d56626 100644
--- a/eng/dependency_tools.txt
+++ b/eng/dependency_tools.txt
@@ -1 +1,2 @@
-../../../tools/azure-sdk-tools
\ No newline at end of file
+../../../tools/azure-sdk-tools
+aiohttp>=3.0; python_version >= '3.5'