diff --git a/go.mod b/go.mod
index 1e8b2c3598..32df27e0bb 100644
--- a/go.mod
+++ b/go.mod
@@ -2,6 +2,8 @@ module github.com/XinFinOrg/XDPoSChain
 
 go 1.25
 
+toolchain go1.25.5
+
 require (
 	github.com/VictoriaMetrics/fastcache v1.12.2
 	github.com/cespare/cp v1.1.1