diff --git a/pyproject.toml b/pyproject.toml
index 5ec1e4d..08e424d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ notifier = "quota_notifier.cli:Application.execute"
 
 [tool.poetry.dependencies]
 python = ">=3.8"
-pydantic = "1.10.9"
+pydantic = "2.0"
 sqlalchemy = "2.0.15"
 
 [tool.poetry.group.tests]