diff --git a/testdata/models/routing_error_forbidden_credentials.json b/testdata/models/routing_error_forbidden_credentials.json
new file mode 100644
index 0000000..ad3aa79
--- /dev/null
+++ b/testdata/models/routing_error_forbidden_credentials.json
@@ -0,0 +1,4 @@
+{
+    "error": "Forbidden",
+    "error_description": "These credentials do not authorize access"
+}
diff --git a/tests/test_routing_api.py b/tests/test_routing_api.py
index 00050ca..89b2169 100644
--- a/tests/test_routing_api.py
+++ b/tests/test_routing_api.py
@@ -140,6 +140,20 @@ def test_carroute_when_error_invalid_credentials_occurred(self):
         with self.assertRaises(herepy.InvalidCredentialsError):
             api.car_route([11.0, 12.0], [22.0, 23.0])
 
+    @responses.activate
+    def test_carroute_when_error_forbidden_credentials_occurred(self):
+        with open("testdata/models/routing_error_forbidden_credentials.json", "r") as f:
+            expectedResponse = f.read()
+        responses.add(
+            responses.GET,
+            "https://route.ls.hereapi.com/routing/7.2/calculateroute.json",
+            expectedResponse,
+            status=401,
+        )
+        api = herepy.RoutingApi("forbidden_api_key", "forbidden_app_code")
+        with self.assertRaises(herepy.InvalidCredentialsError):
+            api.car_route([11.0, 12.0], [22.0, 23.0])
+
     @responses.activate
     def test_carroute_when_error_no_route_found_occurred(self):
         with open("testdata/models/routing_error_no_route_found.json", "r") as f: