diff --git a/requirements.txt b/requirements.txt
index 4fa05ab..93dc005 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ gspread==0.4.1
 httplib2==0.19.0
 oauth2client==3.0.0
 pkg-resources==0.0.0
-pyasn1==0.1.9
+pyasn1==0.6.3
 pyasn1-modules==0.0.8
 requests==2.20.0
 rsa==4.7