diff --git a/tools/interop_matrix/client_matrix.py b/tools/interop_matrix/client_matrix.py
index e5dbb667948..b37c6df6a1c 100644
--- a/tools/interop_matrix/client_matrix.py
+++ b/tools/interop_matrix/client_matrix.py
@@ -267,7 +267,9 @@ LANG_RELEASE_MATRIX = {
             ('v1.38.1', ReleaseInfo()),
             ('v1.39.0', ReleaseInfo()),
             ('v1.40.1', ReleaseInfo()),
+            ('v1.40.2', ReleaseInfo()),
             ('v1.41.0', ReleaseInfo()),
+            ('v1.41.1', ReleaseInfo()),
             ('v1.42.1', ReleaseInfo()),
         ]),
     'python':