diff --git a/go.mod b/go.mod
index 6492837..e2197d6 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/filecoin-project/go-bitfield
 
-go 1.20
+go 1.21
 
 require (
 	github.com/stretchr/testify v1.4.0