diff --git a/go.mod b/go.mod
index 617eb6d..6cc10a5 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module github.com/k-yomo/fixtory/v2
 
 go 1.18
 
-require golang.org/x/mod v0.10.0
+require golang.org/x/mod v0.21.0
diff --git a/go.sum b/go.sum
index 0b96b7e..da3e33a 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,2 @@
-golang.org/x/mod v0.10.0 h1:lFO9qtOdlre5W1jxS3r/4szv2/6iXxScdzjoBMXNhYk=
-golang.org/x/mod v0.10.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
+golang.org/x/mod v0.21.0 h1:vvrHzRwRfVKSiLrG+d4FMl/Qi4ukBCE6kZlTUkDYRT0=
+golang.org/x/mod v0.21.0/go.mod h1:6SkKJ3Xj0I0BrPOZoBy3bdMptDDU9oJrpohJ3eWZ1fY=