diff --git a/go.mod b/go.mod
index d0a50df..ba6d10a 100644
--- a/go.mod
+++ b/go.mod
@@ -2,6 +2,6 @@ module github.com/lufia/try
 
 go 1.23.0
 
-require github.com/m-mizutani/gt v0.1.1
+require github.com/m-mizutani/gt v0.1.2
 
 require github.com/google/go-cmp v0.5.9 // indirect
diff --git a/go.sum b/go.sum
index 657bfba..f5c8cd1 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,4 @@
 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/m-mizutani/gt v0.1.1 h1:BQ5b2dXhAJA+HD8/QVdpD/XVXwM46t5OSikYhYNdblQ=
-github.com/m-mizutani/gt v0.1.1/go.mod h1:0MPYSfGBLmYjTduzADVmIqD58ELQ5IfBFiK/f0FmB3k=
+github.com/m-mizutani/gt v0.1.2 h1:kulbh306ZuFzLMUG82EIjSqycPyE3eHC4TWuHqWfR5M=
+github.com/m-mizutani/gt v0.1.2/go.mod h1:0MPYSfGBLmYjTduzADVmIqD58ELQ5IfBFiK/f0FmB3k=