diff --git a/tools/ci/check_build_warnings.py b/tools/ci/check_build_warnings.py
index c1e564e727..73538ebda9 100755
--- a/tools/ci/check_build_warnings.py
+++ b/tools/ci/check_build_warnings.py
@@ -35,7 +35,8 @@ IGNORE_WARNS = [
         r'changes choice state',
         r'crosstool_version_check\.cmake',
         r'CryptographyDeprecationWarning',
-        r'Warning: \d+/\d+ app partitions are too small for binary'
+        r'Warning: \d+/\d+ app partitions are too small for binary',
+        r'CMake Deprecation Warning at main/lib/tinyxml2/CMakeLists\.txt:11 \(cmake_policy\)',
     ]
 ]