diff --git a/pyproject.toml b/pyproject.toml
index 5877045..0428b47 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,7 @@ dependencies = [
     "lxml>=6.1",
     # The agent runtime currently imports the MCP v1 module layout.
     # Pin the major until the integration bridges are ported to the v2 API.
-    "mcp<2",
+    "mcp<3",
 ]
 
 [project.optional-dependencies]