diff --git a/security/handler.go b/security/handler.go
index 251a9cef..c63f57a8 100644
--- a/security/handler.go
+++ b/security/handler.go
@@ -2,12 +2,13 @@ package security
 
 import (
 	"net/http"
+	"strings"
 )
 
 func Handler(handler http.HandlerFunc, security *Config) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		usernameEntered, passwordEntered, ok := r.BasicAuth()
-		if !ok || usernameEntered != security.Basic.Username || Sha512(passwordEntered) != security.Basic.PasswordSha512Hash {
+		if !ok || usernameEntered != security.Basic.Username || Sha512(passwordEntered) != strings.ToLower(security.Basic.PasswordSha512Hash) {
 			w.Header().Set("WWW-Authenticate", "Basic")
 			w.WriteHeader(http.StatusUnauthorized)
 			_, _ = w.Write([]byte("Unauthorized"))