diff --git a/python-pgmagick.spec b/python-pgmagick.spec
index 6bf0022..b8787df 100644
--- a/python-pgmagick.spec
+++ b/python-pgmagick.spec
@@ -25,7 +25,7 @@ Url:            https://github.com/hhatto/pgmagick/
 Summary:        Yet Another Python wrapper for GraphicsMagick
 License:        MIT
 Group:          Development/Languages/Python
-Source:         http://files.pythonhosted.org/packages/source/p/pgmagick/pgmagick-%{version}.tar.gz
+Source:         https://files.pythonhosted.org/packages/source/p/pgmagick/pgmagick-%{version}.tar.gz
 BuildRequires:  boost-devel
 BuildRequires:  fdupes
 BuildRequires:  pkgconfig(GraphicsMagick++)