diff --git a/test-requirements.txt b/test-requirements.txt
index 9be2f383fd..221440b357 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -4,4 +4,4 @@ coverage
 codecov
 xmltodict>=0.11.0
 awscli>=1.14.18
-pywin32; sys_platform == 'nt'
+pywin32; sys_platform == 'win32'