diff --git a/go.mod b/go.mod
index 1994f03..3fc7abd 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,7 @@ require (
 	github.com/google/go-cmp v0.6.0
 	github.com/invopop/jsonschema v0.12.0
 	github.com/jpillora/longestcommon v0.0.0-20161227235612-adb9d91ee629
-	github.com/stretchr/testify v1.8.4
+	github.com/stretchr/testify v1.9.0
 	golang.org/x/exp v0.0.0-20240325151524-a685a6edb6d8
 )
 
diff --git a/go.sum b/go.sum
index 8ad3694..f375a08 100644
--- a/go.sum
+++ b/go.sum
@@ -225,8 +225,8 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/stretchr/testify v1.8.3/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
-github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
-github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
+github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
+github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/tdewolff/minify/v2 v2.20.18 h1:y+s6OzlZwFqApgNXWNtaMuEMEPbHT72zrCyb9Az35Xo=
 github.com/tdewolff/minify/v2 v2.20.18/go.mod h1:ulkFoeAVWMLEyjuDz1ZIWOA31g5aWOawCFRp9R/MudM=
 github.com/tdewolff/parse/v2 v2.7.12 h1:tgavkHc2ZDEQVKy1oWxwIyh5bP4F5fEh/JmBwPP/3LQ=