diff --git a/go.mod b/go.mod
index 8912c16..8d3b5f9 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,5 @@
 module github.com/sourcegraph/go-diff
 
-go 1.20
+go 1.25.9
 
 require github.com/google/go-cmp v0.5.2