diff --git a/sdk/go.mod b/sdk/go.mod
index 7f1cde7214..2ad82817c0 100644
--- a/sdk/go.mod
+++ b/sdk/go.mod
@@ -2,6 +2,8 @@ module github.com/nginx/agent/sdk/v2
 
 go 1.21
 
+toolchain go1.21.6
+
 require (
 	github.com/cenkalti/backoff/v4 v4.2.1
 	github.com/gogo/protobuf v1.3.2