diff --git a/pyproject.toml b/pyproject.toml
index f032c23..70b6f7f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,6 +9,7 @@ build-backend = "setuptools.build_meta"
 requires-python = ">=3.9"
 dependencies = [
     "aioredis >= 2.0.0, < 2.1.0",
+    "jsonpickle >= 3.0.0 < 3.1.0",
     "tomlkit >= 0.11.0, < 0.12.0",
     "typer >= 0.4.0, < 0.5.0",
 ]