diff --git a/python-biopython.spec b/python-biopython.spec
index 85ea3f4..6943906 100644
--- a/python-biopython.spec
+++ b/python-biopython.spec
@@ -39,7 +39,7 @@ Source0:          https://files.pythonhosted.org/packages/source/b/%{module}/%{m
 # "Biopython License Agreement"; it looks like a MIT variant
 # rhbz #1440337
 License:          MIT and BSD
-URL:              http://www.biopython.org/
+URL:              https://biopython.org/
 BuildRequires:    gcc
 
 %if 0%{?with_python3_other}