--- requirements.txt.orig	2023-02-16 16:31:41.782922455 +0000
+++ requirements.txt	2023-02-18 05:30:38.319901156 +0000
@@ -1,11 +1,10 @@
 # Dependencies required for installation (keep in sync with setup.py)
 requests >= 2.16.2
 six >= 1.12.0
-stone >= 2.*
+stone >= 3.3.1
 # Other dependencies for development
 ply
 pytest
-pytest-runner
 sphinx
 twine
 wheel