diff --git a/pytato/visualization.py b/pytato/visualization.py
index 76e9effd10c8bd5dfdfa2d811656d5e5745aa54f..c4f22f16f90ad53ddc10999cb9266307528db0a0 100644
--- a/pytato/visualization.py
+++ b/pytato/visualization.py
@@ -190,7 +190,7 @@ def _emit_name_cluster(emit: DotEmitter, names: Mapping[str, Array],
 
 
 def get_dot_graph(result: Union[Array, DictOfNamedArrays]) -> str:
-    r"""Return a string in the `dot <http://graphviz.org>`_ language depicting the
+    r"""Return a string in the `dot <https://graphviz.org>`_ language depicting the
     graph of the computation of *result*.
 
     :arg result: Outputs of the computation (cf. :func:`pytato.generate_loopy`).
diff --git a/setup.py b/setup.py
index 9e3721ab61a919465bbeb36f4a412960411343e2..c5a2e6aba24dcd7967dc6566b59a3e2f5762491d 100644
--- a/setup.py
+++ b/setup.py
@@ -39,7 +39,7 @@ setup(name="pytato",
           ],
 
       author="Andreas Kloeckner, Matt Wala, Xiaoyu Wei",
-      url="http://github.com/inducer/pytato",
+      url="https://github.com/inducer/pytato",
       author_email="inform@tiker.net",
       license="MIT",
       packages=find_packages())