diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index b1fa529911..8a1eaf0145 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -6218,7 +6218,7 @@ (define-public python-sympy
              #t)))))
     (propagated-inputs
      `(("python-mpmath" ,python-mpmath)))
-    (home-page "http://www.sympy.org/")
+    (home-page "https://www.sympy.org/")
     (synopsis "Python library for symbolic mathematics")
     (description
      "SymPy is a Python library for symbolic mathematics.  It aims to become a