diff --git a/go.mod b/go.mod
index 7df116fce4f..b39a23800c3 100644
--- a/go.mod
+++ b/go.mod
@@ -161,4 +161,6 @@ require (
 	software.sslmate.com/src/go-pkcs12 v0.2.0 // indirect
 )
 
+toolchain go1.21.0
+
 go 1.20