diff --git a/test_harness/utils.py b/test_harness/utils.py
index 7dfa882..fd30be9 100644
--- a/test_harness/utils.py
+++ b/test_harness/utils.py
@@ -15,7 +15,7 @@
 
 NODE_NORM_URL = {
     "dev": "https://nodenormalization-sri.renci.org/1.4",
-    "ci": "https://nodenorm.ci.transltr.io",
+    "ci": "https://nodenorm-es.ci.transltr.io",
     "test": "https://nodenorm.test.transltr.io/1.4",
     "prod": "https://nodenorm.transltr.io/1.4",
 }
diff --git a/tests/test_run.py b/tests/test_run.py
index 39948ee..72e9822 100644
--- a/tests/test_run.py
+++ b/tests/test_run.py
@@ -30,7 +30,7 @@ def test_run_tests(mocker, httpx_mock: HTTPXMock):
         json=kp_response,
     )
     httpx_mock.add_response(
-        url="https://nodenorm.ci.transltr.io/get_normalized_nodes",
+        url="https://nodenorm-es.ci.transltr.io/get_normalized_nodes",
         json={
             "MONDO:0010794": None,
             "DRUGBANK:DB00313": None,