diff --git a/litellm/proxy/management_endpoints/key_management_endpoints.py b/litellm/proxy/management_endpoints/key_management_endpoints.py
index 15edab8909..068e867f3c 100644
--- a/litellm/proxy/management_endpoints/key_management_endpoints.py
+++ b/litellm/proxy/management_endpoints/key_management_endpoints.py
@@ -790,6 +790,19 @@ async def update_key_fn(
             data=data, existing_key_row=existing_key_row
         )
 
+        is_admin = (
+            user_api_key_dict.user_role is not None
+            and user_api_key_dict.user_role == LitellmUserRoles.PROXY_ADMIN.value
+        )
+
+        if not is_admin:
+            # Ensure user_id is preserved when not specified by admin
+            if non_default_values.get("user_id", None) is None:
+                non_default_values["user_id"] = existing_key_row.user_id
+        elif "user_id" not in non_default_values:
+            # preserve user_id from existing key only when admin does not specify to unset it
+            non_default_values["user_id"] = existing_key_row.user_id
+
         await _enforce_unique_key_alias(
             key_alias=non_default_values.get("key_alias", None),
             prisma_client=prisma_client,
diff --git a/tests/litellm/proxy/test_key_management_endpoints.py b/tests/litellm/proxy/test_key_management_endpoints.py
new file mode 100644
index 0000000000..f89d842c76
--- /dev/null
+++ b/tests/litellm/proxy/test_key_management_endpoints.py
@@ -0,0 +1,69 @@
+import json
+import os
+import sys
+import pytest
+from fastapi.testclient import TestClient
+from litellm.proxy._types import LiteLLM_VerificationToken, LitellmUserRoles, UserAPIKeyAuth
+from litellm.proxy.proxy_server import app
+
+sys.path.insert(
+    0, os.path.abspath("../../..")
+)  # Adds the parent directory to the system path
+
+class MockPrismaClient:
+    def __init__(self):
+        self.db = self
+        self.litellm_verificationtoken = self
+
+    async def find_unique(self, where):
+        return LiteLLM_VerificationToken(
+            token="sk-existing",
+            user_id="user-123",
+            team_id=None,
+            key_name="test-key"
+        )
+
+    async def find_first(self, where):
+        return None
+
+    async def get_data(self, token, table_name, query_type="find_unique"):
+        return await self.find_unique({"token": token})
+
+    async def update_data(self, token, data):
+        self.last_update_data = data  # Store the update data for test verification
+        return {"data": data}
+
+@pytest.fixture
+def test_client():
+    return TestClient(app)
+
+@pytest.fixture
+def mock_prisma():
+    return MockPrismaClient()
+
+@pytest.fixture(autouse=True)
+def mock_user_auth(mocker):
+    return mocker.patch(
+        "litellm.proxy.auth.user_api_key_auth",
+        return_value=UserAPIKeyAuth(
+            api_key="sk-auth",
+            user_id="user-123",
+            team_id=None,
+            user_role=LitellmUserRoles.INTERNAL_USER.value
+        )
+    )
+
+def test_user_id_not_reset_on_key_update(test_client, mock_prisma, mocker):
+    mocker.patch("litellm.proxy.proxy_server.prisma_client", mock_prisma)
+
+    response = test_client.post(
+        "/key/update",
+        headers={"Authorization": "Bearer sk-auth"},
+        json={
+            "key": "sk-existing",
+            "key_alias": "new-alias"
+        }
+    )
+
+    assert response.status_code == 200
+    assert mock_prisma.last_update_data["user_id"] == "user-123"
diff --git a/ui/litellm-dashboard/src/components/key_info_view.tsx b/ui/litellm-dashboard/src/components/key_info_view.tsx
index b7ebdc651a..c0b31cb942 100644
--- a/ui/litellm-dashboard/src/components/key_info_view.tsx
+++ b/ui/litellm-dashboard/src/components/key_info_view.tsx
@@ -64,6 +64,11 @@ export default function KeyInfoView({ keyId, onClose, keyData, accessToken, user
       const currentKey = formValues.token;
       formValues.key = currentKey;
 
+      // Explicitly set user_id to null if not present
+      // if (!('user_id' in formValues)) {
+      //   formValues.user_id = null;
+      // }
+
       // Convert metadata back to an object if it exists and is a string
       if (formValues.metadata && typeof formValues.metadata === "string") {
         try {