diff --git a/go.mod b/go.mod
index c951959..e87675d 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/multiformats/go-multibase
 
-go 1.20
+go 1.21
 
 require (
 	github.com/mr-tron/base58 v1.1.0