diff --git a/pyproject.toml b/pyproject.toml
index dd6cfa9..35e4db7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ classifiers = [
 dependencies = []
 
 [project.optional-dependencies]
-mcp = ["mcp>=1.27,<2"]
+mcp = ["mcp>=1.27,<3"]
 
 [project.scripts]
 netspec = "kicad_netspec.cli:main"