diff --git a/app/Http/Controllers/CharacteristicsController.php b/app/Http/Controllers/CharacteristicsController.php
index e1f76d0..8f6b0d0 100644
--- a/app/Http/Controllers/CharacteristicsController.php
+++ b/app/Http/Controllers/CharacteristicsController.php
@@ -3982,7 +3982,7 @@ class CharacteristicsController extends Controller
         $headerAuth = $request->header('Authorization');
         $expectedToken = 'Bearer '.$expectedUser.':'.$expectedPw;
 
-        if ($headerAuth !== $expectedToken) {
+        if ($headerAuth != $expectedToken) {
             return response()->json([
                 'status_code' => 'ERROR',
                 'status_description' => 'Invalid authorization token!',
@@ -4236,7 +4236,7 @@ class CharacteristicsController extends Controller
         $headerAuth = $request->header('Authorization');
         $expectedToken = 'Bearer '.$expectedUser.':'.$expectedPw;
 
-        if ($headerAuth !== $expectedToken) {
+        if ($headerAuth != $expectedToken) {
             return response()->json([
                 'status_code' => 'ERROR',
                 'status_description' => 'Invalid authorization token!',
@@ -5315,7 +5315,7 @@ class CharacteristicsController extends Controller
         $headerAuth = $request->header('Authorization');
         $expectedToken = 'Bearer '.$expectedUser.':'.$expectedPw;
 
-        if ($headerAuth !== $expectedToken) {
+        if ($headerAuth != $expectedToken) {
             return response()->json([
                 'status_code' => 'ERROR',
                 'status_description' => 'Invalid authorization token!',