diff --git a/cmd/index.go b/cmd/index.go
index 3367bf9..1a7211f 100644
--- a/cmd/index.go
+++ b/cmd/index.go
@@ -196,7 +196,7 @@ func serveIndexRebuild(args []string, index *fileIndex, formats types.Types, enc
 
 		fileList(args, &filters{}, "", index, formats, encoder, errorChannel)
 
-		w.Header().Set("Content-Type", "text/plain")
+		w.Header().Set("Content-Type", "text/plain;charset=UTF-8")
 
 		_, err := w.Write([]byte("Ok\n"))
 		if err != nil {
diff --git a/cmd/info.go b/cmd/info.go
index fd279f4..a1cdfbb 100644
--- a/cmd/info.go
+++ b/cmd/info.go
@@ -26,7 +26,7 @@ func serveIndex(args []string, index *fileIndex, errorChannel chan<- error) http
 			return strings.ToLower(indexDump[p]) < strings.ToLower(indexDump[q])
 		})
 
-		w.Header().Set("Content-Type", "application/json")
+		w.Header().Set("Content-Type", "application/json;charset=UTF-8")
 
 		response, err := json.MarshalIndent(indexDump, "", "    ")
 		if err != nil {
@@ -59,7 +59,7 @@ func serveExtensions(formats types.Types, available bool, errorChannel chan<- er
 	return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
 		startTime := time.Now()
 
-		w.Header().Set("Content-Type", "text/plain")
+		w.Header().Set("Content-Type", "text/plain;charset=UTF-8")
 
 		var extensions string
 
@@ -89,7 +89,7 @@ func serveMediaTypes(formats types.Types, available bool, errorChannel chan<- er
 	return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
 		startTime := time.Now()
 
-		w.Header().Set("Content-Type", "text/plain")
+		w.Header().Set("Content-Type", "text/plain;charset=UTF-8")
 
 		var mediaTypes string
 
diff --git a/cmd/root.go b/cmd/root.go
index b22725b..4da6971 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -17,7 +17,7 @@ import (
 
 const (
 	AllowedCharacters string = `^[A-z0-9.\-_]+$`
-	ReleaseVersion    string = "6.3.0"
+	ReleaseVersion    string = "6.3.1"
 )
 
 var (
diff --git a/cmd/web.go b/cmd/web.go
index f105e3f..0bdbca3 100644
--- a/cmd/web.go
+++ b/cmd/web.go
@@ -55,7 +55,7 @@ func newPage(title, body string) string {
 func noFiles(w http.ResponseWriter, r *http.Request) {
 	startTime := time.Now()
 
-	w.Header().Set("Content-Type", "text/plain")
+	w.Header().Set("Content-Type", "text/plain;charset=UTF-8")
 
 	w.Write([]byte("No files found in the specified path(s).\n"))
 
@@ -424,6 +424,8 @@ func serveVersion(errorChannel chan<- error) httprouter.Handle {
 
 		data := []byte(fmt.Sprintf("roulette v%s\n", ReleaseVersion))
 
+		w.Header().Set("Content-Type", "text/plain;charset=UTF-8")
+
 		w.Header().Set("Content-Length", strconv.Itoa(len(data)))
 
 		written, err := w.Write(data)