diff --git a/go.mod b/go.mod
index 56e02a2..5963459 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module oidc-demo
 
-go 1.23
+go 1.21
 
 require (
 	github.com/coreos/go-oidc/v3 v3.11.0