diff --git a/pyproject.toml b/pyproject.toml
index 60e7ca6..6e1c579 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,6 +10,7 @@ readme = "README.md"
 requires-python = ">=3.11"
 dependencies = [
     "alembic>=1.14.0,<2.0.0",
+    "cryptography>=42.0.0,<48.0.0",
     "fastapi>=0.115.0,<1.0.0",
     "pydantic-settings>=2.4.0,<3.0.0",
     "psycopg[binary]>=3.2.0,<4.0.0",