diff --git a/go.mod b/go.mod
index 386b56f..e097cff 100644
--- a/go.mod
+++ b/go.mod
@@ -2,3 +2,6 @@ module apigo.cc/go/shell
 
 go 1.25.0
 
+require apigo.cc/go/cast v1.2.6
+
+replace apigo.cc/go/cast => ../cast
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..e69de29