diff --git a/requirements.txt b/requirements.txt
index 8d73062..5d1d21a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -154,7 +154,7 @@ pytest-remotedata==0.2.1
 python-dateutil==2.7.3
 pytz==2018.4
 PyWavelets==0.5.2
-pywin32==223
+pywin32==301
 pywinpty==0.5.1
 PyYAML==3.12
 pyzmq==17.0.0