diff --git a/conformance/Cargo.toml b/conformance/Cargo.toml
index a38e9e624..42a5e851f 100644
--- a/conformance/Cargo.toml
+++ b/conformance/Cargo.toml
@@ -2,6 +2,7 @@
 name = "mcp-conformance"
 version = "0.1.0"
 edition = "2021"
+publish = false
 
 [[bin]]
 name = "conformance-server"