diff --git a/pyproject.toml b/pyproject.toml
index ee54b2d70..e2d657e26 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ classifiers = [
 requires-python = ">=3.10"
 dependencies = [
     "fastapi>=0.115.6",
-    "mcp>=1.8.0",
+    "mcp==1.8.0",
     "opentelemetry-distro>=0.50b0",
     "opentelemetry-exporter-otlp-proto-http>=1.29.0",
     "pydantic-settings>=2.7.0",