diff --git a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/stub/BigQueryReadStubSettings.java b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/stub/BigQueryReadStubSettings.java
index 411e2a990a..6a597a92db 100644
--- a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/stub/BigQueryReadStubSettings.java
+++ b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/stub/BigQueryReadStubSettings.java
@@ -133,6 +133,11 @@ public static String getDefaultEndpoint() {
     return "bigquerystorage.googleapis.com:443";
   }
 
+  /** Returns the default mTLS service endpoint. */
+  public static String getDefaultMtlsEndpoint() {
+    return "bigquerystorage.mtls.googleapis.com:443";
+  }
+
   /** Returns the default service scopes. */
   public static List<String> getDefaultServiceScopes() {
     return DEFAULT_SERVICE_SCOPES;
@@ -293,6 +298,8 @@ private static Builder createDefault() {
       builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
       builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
       builder.setEndpoint(getDefaultEndpoint());
+      builder.setMtlsEndpoint(getDefaultMtlsEndpoint());
+      builder.setSwitchToMtlsEndpointAllowed(true);
 
       return initDefaults(builder);
     }
diff --git a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta1/stub/BigQueryStorageStubSettings.java b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta1/stub/BigQueryStorageStubSettings.java
index 3a5d4b2d2a..d0e8825f6a 100644
--- a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta1/stub/BigQueryStorageStubSettings.java
+++ b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta1/stub/BigQueryStorageStubSettings.java
@@ -153,6 +153,11 @@ public static String getDefaultEndpoint() {
     return "bigquerystorage.googleapis.com:443";
   }
 
+  /** Returns the default mTLS service endpoint. */
+  public static String getDefaultMtlsEndpoint() {
+    return "bigquerystorage.mtls.googleapis.com:443";
+  }
+
   /** Returns the default service scopes. */
   public static List<String> getDefaultServiceScopes() {
     return DEFAULT_SERVICE_SCOPES;
@@ -335,6 +340,8 @@ private static Builder createDefault() {
       builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
       builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
       builder.setEndpoint(getDefaultEndpoint());
+      builder.setMtlsEndpoint(getDefaultMtlsEndpoint());
+      builder.setSwitchToMtlsEndpointAllowed(true);
 
       return initDefaults(builder);
     }
diff --git a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta2/stub/BigQueryReadStubSettings.java b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta2/stub/BigQueryReadStubSettings.java
index 946f962891..af3f152002 100644
--- a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta2/stub/BigQueryReadStubSettings.java
+++ b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta2/stub/BigQueryReadStubSettings.java
@@ -134,6 +134,11 @@ public static String getDefaultEndpoint() {
     return "bigquerystorage.googleapis.com:443";
   }
 
+  /** Returns the default mTLS service endpoint. */
+  public static String getDefaultMtlsEndpoint() {
+    return "bigquerystorage.mtls.googleapis.com:443";
+  }
+
   /** Returns the default service scopes. */
   public static List<String> getDefaultServiceScopes() {
     return DEFAULT_SERVICE_SCOPES;
@@ -294,6 +299,8 @@ private static Builder createDefault() {
       builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
       builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
       builder.setEndpoint(getDefaultEndpoint());
+      builder.setMtlsEndpoint(getDefaultMtlsEndpoint());
+      builder.setSwitchToMtlsEndpointAllowed(true);
 
       return initDefaults(builder);
     }
diff --git a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta2/stub/BigQueryWriteStubSettings.java b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta2/stub/BigQueryWriteStubSettings.java
index a8b122f1dc..6becb16121 100644
--- a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta2/stub/BigQueryWriteStubSettings.java
+++ b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1beta2/stub/BigQueryWriteStubSettings.java
@@ -159,6 +159,11 @@ public static String getDefaultEndpoint() {
     return "bigquerystorage.googleapis.com:443";
   }
 
+  /** Returns the default mTLS service endpoint. */
+  public static String getDefaultMtlsEndpoint() {
+    return "bigquerystorage.mtls.googleapis.com:443";
+  }
+
   /** Returns the default service scopes. */
   public static List<String> getDefaultServiceScopes() {
     return DEFAULT_SERVICE_SCOPES;
@@ -346,6 +351,8 @@ private static Builder createDefault() {
       builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
       builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
       builder.setEndpoint(getDefaultEndpoint());
+      builder.setMtlsEndpoint(getDefaultMtlsEndpoint());
+      builder.setSwitchToMtlsEndpointAllowed(true);
 
       return initDefaults(builder);
     }
diff --git a/synth.metadata b/synth.metadata
index 5e7be971c4..07acfc7adf 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -11,31 +11,31 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-bigquerystorage.git",
-        "sha": "380195b51368b88f25dba20499de5f8053f13984"
+        "sha": "8ab7626c02c22bc0ad3761d1d8eeb4c140b79d37"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "9e3105549a35520f215359065c11e8dce15e18af",
-        "internalRef": "378266372"
+        "sha": "08c4eeb531c01ad031134dca94b18e3f7dd35902",
+        "internalRef": "378718217"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "9e3105549a35520f215359065c11e8dce15e18af",
-        "internalRef": "378266372"
+        "sha": "08c4eeb531c01ad031134dca94b18e3f7dd35902",
+        "internalRef": "378718217"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "9e3105549a35520f215359065c11e8dce15e18af",
-        "internalRef": "378266372"
+        "sha": "08c4eeb531c01ad031134dca94b18e3f7dd35902",
+        "internalRef": "378718217"
       }
     },
     {