diff --git a/go.mod b/go.mod
index 23abd17..73e61e9 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,8 @@
 module test
 
 go 1.16
+
+retract (
+	v1.0.1
+	v1.0.0
+)
diff --git a/x.go b/x.go
index 6208570..90f0278 100644
--- a/x.go
+++ b/x.go
@@ -1,3 +1,3 @@
 package x
 
-// This is a comment for v1.0.0
+// This is a comment for v1.0.1