diff --git a/tests/nadp_test.py b/tests/nadp_test.py
index 94e364f0..eb5e8423 100644
--- a/tests/nadp_test.py
+++ b/tests/nadp_test.py
@@ -2,8 +2,15 @@
 
 import os
 
+import pytest
+
 from dataretrieval import nadp
 
+pytestmark = pytest.mark.skip(
+    reason="NADP module deprecated; removal scheduled 2026-11-01. "
+    "Tests hit live NADP services and were causing CI flakes."
+)
+
 
 class TestMDNmap:
     """Testing the mercury deposition network map functions.