diff --git a/go.mod b/go.mod
index 43b5e09..146e449 100644
--- a/go.mod
+++ b/go.mod
@@ -2,6 +2,8 @@ module github.com/c3-oss/mcp-plane
 
 go 1.26.2
 
+toolchain go1.26.4
+
 require (
 	github.com/mark3labs/mcp-go v0.55.1
 	github.com/spf13/cobra v1.10.2