diff --git a/tools/interop_matrix/client_matrix.py b/tools/interop_matrix/client_matrix.py
index 957e1661859..d4027e5b2e9 100644
--- a/tools/interop_matrix/client_matrix.py
+++ b/tools/interop_matrix/client_matrix.py
@@ -252,8 +252,8 @@ LANG_RELEASE_MATRIX = {
             ('v1.32.3', ReleaseInfo()),
             ('v1.33.1', ReleaseInfo()),
             ('v1.34.1', ReleaseInfo()),
-            ('v1.35.0', ReleaseInfo()),
-            ('v1.36.0', ReleaseInfo()),
+            ('v1.35.1', ReleaseInfo()),
+            ('v1.36.1', ReleaseInfo()),
         ]),
     'python':
         OrderedDict([