diff --git a/pyproject.toml b/pyproject.toml
index ab30f9c..06f7167 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,6 +19,7 @@ dependencies = [
     "itsdangerous>=2.1.0",
     "python-multipart>=0.0.9",
     "httpx>=0.27.0",
+    "cryptography",
 ]
 
 [project.optional-dependencies]