diff --git a/pyproject.toml b/pyproject.toml
index b071afb..0f64cc2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,7 +31,7 @@ classifiers = [
     "Topic :: Database :: Front-Ends",
 ]
 dependencies = [
-    "mcp>=1.0.0",
+    "mcp>=1.0.0,<2",
     "pydantic>=2.7.0",
     "tomlkit>=0.13.0",
     "typer[all]>=0.12.0",