diff --git a/diff.go b/diff.go
index 588d341..364597e 100644
--- a/diff.go
+++ b/diff.go
@@ -43,8 +43,8 @@ func (app *App) Diff(opt DiffOption) error {
 	newJSON, _ := marshalJSON(newFunc)
 
 	if ds := diff.Diff(string(latestJSON), string(newJSON)); ds != "" {
-		fmt.Println(color.RedString("---", app.functionArn(name)))
-		fmt.Println(color.GreenString("+++", *opt.FunctionFilePath))
+		fmt.Println(color.RedString("---" + app.functionArn(name)))
+		fmt.Println(color.GreenString("+++" + *opt.FunctionFilePath))
 		fmt.Println(coloredDiff(ds))
 	}
 	return nil
diff --git a/go.mod b/go.mod
index 52249c1..076ad13 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ require (
 	github.com/aws/aws-sdk-go v1.40.52
 	github.com/fatih/color v1.13.0
 	github.com/fujiwara/logutils v1.1.0
-	github.com/fujiwara/tfstate-lookup v0.4.0
+	github.com/fujiwara/tfstate-lookup v0.4.2
 	github.com/go-test/deep v1.0.7
 	github.com/google/go-jsonnet v0.17.0
 	github.com/hashicorp/go-envparse v0.0.0-20200406174449-d9cfd743a15e
diff --git a/go.sum b/go.sum
index 583c5ad..d99d8ce 100644
--- a/go.sum
+++ b/go.sum
@@ -120,8 +120,8 @@ github.com/form3tech-oss/jwt-go v3.2.2+incompatible h1:TcekIExNqud5crz4xD2pavyTg
 github.com/form3tech-oss/jwt-go v3.2.2+incompatible/go.mod h1:pbq4aXjuKjdthFRnoDwaVPLA+WlJuPGy+QneDUgJi2k=
 github.com/fujiwara/logutils v1.1.0 h1:JAYmqW40d/ZjzouB01sfZiaTxwNe4hwmB6lLajZqm1s=
 github.com/fujiwara/logutils v1.1.0/go.mod h1:pdb/Uk70rjQWEmFm/OvYH7OG8meZt1fEIqC0qZbvro4=
-github.com/fujiwara/tfstate-lookup v0.4.0 h1:AaubXvolethCndWpZ+c/Sibm6J4SCIlSxcxvn6cYon4=
-github.com/fujiwara/tfstate-lookup v0.4.0/go.mod h1:F56Bz3W497ZJA0ijFLVgcYeAVuhtbzvV6/hMtu6f2Ek=
+github.com/fujiwara/tfstate-lookup v0.4.2 h1:RmhlHIMLVqNWHxaBasap+L5LO7pKorAbpIVQrktYCzY=
+github.com/fujiwara/tfstate-lookup v0.4.2/go.mod h1:F56Bz3W497ZJA0ijFLVgcYeAVuhtbzvV6/hMtu6f2Ek=
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=