diff --git a/setup.py b/setup.py
index ffd35287c..6817b8dea 100644
--- a/setup.py
+++ b/setup.py
@@ -116,7 +116,7 @@ tests_requirements = [
     "flaky>=3.5.3",
     "mock>=3.0.0",
     "xmltodict>=0.11.0",
-    "awscli>=1.16.125",
+    "awscli==1.16.266",
     "google-compute-engine==2.8.13",
     "pywin32; sys_platform == 'win32'",
     "Pygments",  # required by collective.checkdocs,