diff --git a/requirements.txt b/requirements.txt
index 7eb3c47..6c2b30a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ google-businessmessages==1.0.4
 fasteners==0.15
 httplib2==0.20.2
 oauth2client==4.1.3
-pyasn1==0.4.8
+pyasn1==0.6.3
 pyasn1-modules==0.2.8
 pyparsing==3.0.6
 rsa==4.8