diff --git a/python-pyasn1.spec b/python-pyasn1.spec
index e0c6a18..8cd9aa0 100644
--- a/python-pyasn1.spec
+++ b/python-pyasn1.spec
@@ -23,7 +23,7 @@ Summary:        ASN.1 types and codecs
 License:        BSD-2-Clause
 Group:          Development/Languages/Python
 Url:            https://github.com/etingof/pyasn1
-Source:         http://pypi.python.org/packages/source/p/pyasn1/pyasn1-%{version}.tar.gz
+Source:         https://pypi.io/packages/source/p/pyasn1/pyasn1-%{version}.tar.gz
 BuildRequires:  python-devel
 BuildRequires:  python-pytest
 BuildRequires:  python-setuptools