diff --git a/libraries/botbuilder-core/requirements.txt b/libraries/botbuilder-core/requirements.txt
index bc3cbe702..831194644 100644
--- a/libraries/botbuilder-core/requirements.txt
+++ b/libraries/botbuilder-core/requirements.txt
@@ -4,4 +4,4 @@ botbuilder-schema==4.10.0
 requests==2.23.0
 PyJWT==1.5.3
 cryptography==2.8.0
-aiounittest==1.3.0
\ No newline at end of file
+aiounittest==1.3.0