diff --git a/EDMarketConnector.wxs b/EDMarketConnector.wxs
index 48fc1f22..9013912c 100644
--- a/EDMarketConnector.wxs
+++ b/EDMarketConnector.wxs
@@ -198,7 +198,7 @@
 						<File KeyPath="yes" Source="SourceDir\pyexpat.pyd" />
 					</Component>
 					<Component Guid="*">
-						<File KeyPath="yes" Source="SourceDir\python38.dll" />
+						<File KeyPath="yes" Source="SourceDir\python39.dll" />
 					</Component>
 					<Component Guid="*">
 						<File KeyPath="yes" Source="SourceDir\rare_commodity.csv" />
@@ -602,7 +602,7 @@
 			<ComponentRef Id="pt_BR.strings" />
 			<ComponentRef Id="pt_PT.strings" />
 			<ComponentRef Id="pyexpat.pyd" />
-			<ComponentRef Id="python38.dll" />
+			<ComponentRef Id="python39.dll" />
 			<ComponentRef Id="rare_commodity.csv" />
 			<ComponentRef Id="ru.strings" />
 			<ComponentRef Id="select.pyd" />
diff --git a/setup.py b/setup.py
index f131f8f2..14cefcaa 100755
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@ import semantic_version
 
 from config import appcmdname, applongname, appname, appversion, copyright, update_feed, update_interval
 
-if sys.version_info[0:2] != (3, 8):
+if sys.version_info[0:2] != (3, 9):
     raise AssertionError(f'Unexpected python version {sys.version}')
 
 if sys.platform == 'win32':