diff --git a/src/bin_client/test/test_cors.sh b/src/bin_client/test/test_cors.sh
index 49c5980040ce3a72de618c4f75e2b350fa47fe0a..6003d20f53a3b9e5e1dcacaa59d7d66ad00f805e 100755
--- a/src/bin_client/test/test_cors.sh
+++ b/src/bin_client/test/test_cors.sh
@@ -5,7 +5,7 @@ set -e
 test_dir="$(cd "$(dirname "$0")" && echo "$(pwd -P)")"
 source $test_dir/test_lib.inc.sh "$@"
 
-start_node 1 --cors-origin "*"
+start_node 1 --cors-origin localhost
 
 show_logs="no"
 
diff --git a/tests_python/tests/test_cors.py b/tests_python/tests/test_cors.py
index 428af322da485e68fc7465485704f78d04b55525..c7cbb8f02e20a51e7e5cd5597ba62cbf1ffd6720 100644
--- a/tests_python/tests/test_cors.py
+++ b/tests_python/tests/test_cors.py
@@ -5,7 +5,7 @@ from tools import utils
 @pytest.fixture(scope="class")
 def node(sandbox):
     """Launches one node in sandbox mode (genesis)"""
-    sandbox.add_node(0, params=['--cors-origin', '*'])
+    sandbox.add_node(0, params=['--cors-origin', 'localhost'])
     yield sandbox.node(0)
 
 
@@ -38,4 +38,4 @@ class TestCors:
                         '/chains/main/blocks/head/header/shell',
                         headers=headers)
         print(res.headers)
-        assert res.headers["access-control-allow-origin"] == '*'
+        assert res.headers["access-control-allow-origin"] == 'localhost'