diff --git a/go.mod b/go.mod
index 3899d37..a118024 100644
--- a/go.mod
+++ b/go.mod
@@ -11,12 +11,8 @@ retract (
 )
 
 require (
-	github.com/stretchr/testify v1.10.0
+	github.com/stretchr/testify v1.12.0
 	github.com/takahiromiyamoto/go-xeger v0.0.0-20190630230347-fd0b7a1d9283
 )
 
-require (
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
-)
+require gopkg.in/yaml.v3 v3.0.1 // indirect
diff --git a/go.sum b/go.sum
index 8b9c974..9ff26af 100644
--- a/go.sum
+++ b/go.sum
@@ -1,9 +1,5 @@
-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/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
-github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/stretchr/testify v1.12.0 h1:K6Mr6jO9JICuend/5xzTM03ydSV3vdNRYAdPSukj8uI=
+github.com/stretchr/testify v1.12.0/go.mod h1:bOYBZb5qJ00vPzWfIqBUZPaxK8jWiXc6d3ErP4Ca9Gw=
 github.com/takahiromiyamoto/go-xeger v0.0.0-20190630230347-fd0b7a1d9283 h1:38lc2WPxptUPppG22vigAP9IevNrrIZj8NDYmM0sUg0=
 github.com/takahiromiyamoto/go-xeger v0.0.0-20190630230347-fd0b7a1d9283/go.mod h1:MOklzacwSgwHDoTREkp2anEhlbUor7xcETzCRudnw0M=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=