diff --git a/go.mod b/go.mod
index 86037eb..ba94c08 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module github.com/shogo82148/go-cbor
 
 go 1.21.1
 
-require github.com/google/go-cmp v0.5.9
+require github.com/google/go-cmp v0.6.0
diff --git a/go.sum b/go.sum
index 62841cd..5a8d551 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,2 @@
-github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
-github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=