diff --git a/nix/requirements_frozen.txt b/nix/requirements_frozen.txt
index d354f21..588017e 100644
--- a/nix/requirements_frozen.txt
+++ b/nix/requirements_frozen.txt
@@ -13,7 +13,7 @@ more-itertools==7.0.0
 mypy==0.701
 mypy-extensions==0.4.1
 pluggy==0.9.0
-py==1.8.0
+py==1.10.0
 pyce===1.0.0-patch1
 pycparser==2.19
 pytest==4.5.0