diff --git a/ai/vector-search-java/src/main/java/com/azure/documentdb/samples/DiskAnn.java b/ai/vector-search-java/src/main/java/com/azure/documentdb/samples/DiskAnn.java
index 676630b..59dcc76 100644
--- a/ai/vector-search-java/src/main/java/com/azure/documentdb/samples/DiskAnn.java
+++ b/ai/vector-search-java/src/main/java/com/azure/documentdb/samples/DiskAnn.java
@@ -94,7 +94,7 @@ private MongoClient createMongoClient() {
             .withMechanismProperty("OIDC_CALLBACK", callback);
 
         var connectionString = new ConnectionString(
-            String.format("mongodb+srv://%s@%s.mongocluster.cosmos.azure.com/?authMechanism=MONGODB-OIDC&tls=true&retrywrites=false&maxIdleTimeMS=120000",
+            String.format("mongodb+srv://%s@%s.global.mongocluster.cosmos.azure.com/?authMechanism=MONGODB-OIDC&tls=true&retrywrites=false&maxIdleTimeMS=120000",
                 managedIdentityPrincipalId, clusterName)
         );
 
diff --git a/ai/vector-search-java/src/main/java/com/azure/documentdb/samples/HNSW.java b/ai/vector-search-java/src/main/java/com/azure/documentdb/samples/HNSW.java
index 146fc27..e077d91 100644
--- a/ai/vector-search-java/src/main/java/com/azure/documentdb/samples/HNSW.java
+++ b/ai/vector-search-java/src/main/java/com/azure/documentdb/samples/HNSW.java
@@ -94,7 +94,7 @@ private MongoClient createMongoClient() {
             .withMechanismProperty("OIDC_CALLBACK", callback);
 
         var connectionString = new ConnectionString(
-            String.format("mongodb+srv://%s@%s.mongocluster.cosmos.azure.com/?authMechanism=MONGODB-OIDC&tls=true&retrywrites=false&maxIdleTimeMS=120000",
+            String.format("mongodb+srv://%s@%s.global.mongocluster.cosmos.azure.com/?authMechanism=MONGODB-OIDC&tls=true&retrywrites=false&maxIdleTimeMS=120000",
                 managedIdentityPrincipalId, clusterName)
         );
 
diff --git a/ai/vector-search-java/src/main/java/com/azure/documentdb/samples/IVF.java b/ai/vector-search-java/src/main/java/com/azure/documentdb/samples/IVF.java
index e800107..7962115 100644
--- a/ai/vector-search-java/src/main/java/com/azure/documentdb/samples/IVF.java
+++ b/ai/vector-search-java/src/main/java/com/azure/documentdb/samples/IVF.java
@@ -94,7 +94,7 @@ private MongoClient createMongoClient() {
             .withMechanismProperty("OIDC_CALLBACK", callback);
 
         var connectionString = new ConnectionString(
-            String.format("mongodb+srv://%s@%s.mongocluster.cosmos.azure.com/?authMechanism=MONGODB-OIDC&tls=true&retrywrites=false&maxIdleTimeMS=120000",
+            String.format("mongodb+srv://%s@%s.global.mongocluster.cosmos.azure.com/?authMechanism=MONGODB-OIDC&tls=true&retrywrites=false&maxIdleTimeMS=120000",
                 managedIdentityPrincipalId, clusterName)
         );
 
diff --git a/ai/vector-search-typescript/src/utils.ts b/ai/vector-search-typescript/src/utils.ts
index 1e4abe9..a7fe3bb 100644
--- a/ai/vector-search-typescript/src/utils.ts
+++ b/ai/vector-search-typescript/src/utils.ts
@@ -80,7 +80,7 @@ export function getClientsPasswordless(): { aiClient: AzureOpenAI | null; dbClie
     // For DocumentDB with DefaultAzureCredential (uses signed-in user)
     {
         dbClient = new MongoClient(
-            `mongodb+srv://${clusterName}.mongocluster.cosmos.azure.com/`, {
+            `mongodb+srv://${clusterName}.global.mongocluster.cosmos.azure.com/`, {
             connectTimeoutMS: 120000,
             tls: true,
             retryWrites: false,