diff --git a/requirements.txt b/requirements.txt
index 03c39b9..4014fec 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ MarkupSafe==1.0
 mock==1.3.0
 pbr==4.0.0
 pem==15.0.0
-pyasn1==0.4.2
+pyasn1==0.6.3
 pyasn1-modules==0.2.1
 pycparser==2.18
 pycrypto==2.6.1