diff --git a/go.mod b/go.mod
index 912faa9..05e6396 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,7 @@
 module example.com/example
 
-go 1.19
+go 1.23
 
-require github.com/resend/resend-go/v2 v2.11.0
+toolchain go1.23.2
+
+require github.com/resend/resend-go/v2 v2.13.0
diff --git a/go.sum b/go.sum
index 85a3040..735d09c 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,10 @@
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/resend/resend-go/v2 v2.11.0 h1:Ja5eXizUCbvyLgbiP8sFsJW/UN1b7d6IEUqi80IlgiU=
-github.com/resend/resend-go/v2 v2.11.0/go.mod h1:ihnxc7wPpSgans8RV8d8dIF4hYWVsqMK5KxXAr9LIos=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/resend/resend-go/v2 v2.13.0 h1:O6Z5Z+LiBlDAm6daHHn0POQX4TJfsdGIhQJD8qGutW4=
+github.com/resend/resend-go/v2 v2.13.0/go.mod h1:3YCb8c8+pLiqhtRFXTyFwlLvfjQtluxOr9HEh2BwCkQ=
 github.com/stretchr/testify v1.8.2 h1:+h33VjcLVPDHtOdpUCuF+7gSuG3yGIftsP1YvFihtJ8=
+github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=