diff --git a/vars/goDefaultVersion.groovy b/vars/goDefaultVersion.groovy
index 5200bc464..d06176481 100644
--- a/vars/goDefaultVersion.groovy
+++ b/vars/goDefaultVersion.groovy
@@ -38,5 +38,5 @@ def isGoVersionEnvVarSet(){
 }
 
 def defaultVersion(){
-  return '1.21.2'
+  return '1.21.3'
 }