diff --git a/go.mod b/go.mod
index d2e5f2e..24698b9 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,5 @@
 module github.com/iand/gedcom
 
-go 1.16
+go 1.21.4
 
 require github.com/google/go-cmp v0.5.9