diff --git a/tools/interop_matrix/client_matrix.py b/tools/interop_matrix/client_matrix.py
index c55789f27ee..15b53d1716b 100644
--- a/tools/interop_matrix/client_matrix.py
+++ b/tools/interop_matrix/client_matrix.py
@@ -99,6 +99,9 @@ LANG_RELEASE_MATRIX = {
         {
             'v1.14.1': None
         },
+        {
+            'v1.15.0': None
+        },
     ],
     'go': [
         {
@@ -231,6 +234,9 @@ LANG_RELEASE_MATRIX = {
         {
             'v1.14.1': None
         },
+        {
+            'v1.15.0': None
+        },
     ],
     'node': [
         {
@@ -319,6 +325,9 @@ LANG_RELEASE_MATRIX = {
         {
             'v1.14.1': None
         },
+        {
+            'v1.15.0': None
+        },
     ],
     'php': [
         {
@@ -363,6 +372,9 @@ LANG_RELEASE_MATRIX = {
         {
             'v1.14.1': None
         },
+        {
+            'v1.15.0': None
+        },
     ],
     'csharp': [
         {
@@ -412,6 +424,9 @@ LANG_RELEASE_MATRIX = {
         {
             'v1.14.1': None
         },
+        {
+            'v1.15.0': None
+        },
     ],
 }