diff --git a/pyproject.toml b/pyproject.toml
index 1eeea66..481e051 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ readme = "README.md"
 requires-python = ">=3.9"
 dependencies = [
   "qrcode>=8.0,<9",
-  "cryptography>=41,<47",
+  "cryptography>=41,<51",
   "h2>=4.3,<5",
   "websocket-client>=1.8,<2",
 ]