[requires.io] dependency update

requires · requires · commit cc12e4b9a058 · 2021-03-20T07:32:34.000-07:00
diff --git a/tox.ini b/tox.ini
@@ -322,7 +322,7 @@ description = build documentation
 basepython = {[default]basepython}
 
 deps =
-    Sphinx==3.5.2
+    Sphinx==3.5.3
     sphinx-rtd-theme==0.5.1
 
 commands =
