diff --git a/requirements.txt b/requirements.txt
index 94a3c61..5f9fd99 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -182,7 +182,7 @@ pytest-remotedata==0.3.0
 python-dateutil==2.7.3
 pytz==2018.5
 PyWavelets==1.0.0
-pywin32==223
+pywin32==301
 pywinpty==0.5.4
 PyYAML==3.13
 pyzmq==17.1.2