diff --git a/proto-google-cloud-bigtable-admin-v2/src/main/java/com/google/bigtable/admin/v2/Backup.java b/proto-google-cloud-bigtable-admin-v2/src/main/java/com/google/bigtable/admin/v2/Backup.java
index b4b2a32eb4..49e16b34c6 100644
--- a/proto-google-cloud-bigtable-admin-v2/src/main/java/com/google/bigtable/admin/v2/Backup.java
+++ b/proto-google-cloud-bigtable-admin-v2/src/main/java/com/google/bigtable/admin/v2/Backup.java
@@ -358,7 +358,7 @@ public com.google.protobuf.ByteString getSourceTableBytes() {
    *
    * <pre>
    * Required. The expiration time of the backup, with microseconds
-   * granularity that must be at least 6 hours and at most 30 days
+   * granularity that must be at least 6 hours and at most 90 days
    * from the time the request is received. Once the `expire_time`
    * has passed, Cloud Bigtable will delete the backup and free the
    * resources used by the backup.
@@ -378,7 +378,7 @@ public boolean hasExpireTime() {
    *
    * <pre>
    * Required. The expiration time of the backup, with microseconds
-   * granularity that must be at least 6 hours and at most 30 days
+   * granularity that must be at least 6 hours and at most 90 days
    * from the time the request is received. Once the `expire_time`
    * has passed, Cloud Bigtable will delete the backup and free the
    * resources used by the backup.
@@ -398,7 +398,7 @@ public com.google.protobuf.Timestamp getExpireTime() {
    *
    * <pre>
    * Required. The expiration time of the backup, with microseconds
-   * granularity that must be at least 6 hours and at most 30 days
+   * granularity that must be at least 6 hours and at most 90 days
    * from the time the request is received. Once the `expire_time`
    * has passed, Cloud Bigtable will delete the backup and free the
    * resources used by the backup.
@@ -1454,7 +1454,7 @@ public Builder setSourceTableBytes(com.google.protobuf.ByteString value) {
      *
      * <pre>
      * Required. The expiration time of the backup, with microseconds
-     * granularity that must be at least 6 hours and at most 30 days
+     * granularity that must be at least 6 hours and at most 90 days
      * from the time the request is received. Once the `expire_time`
      * has passed, Cloud Bigtable will delete the backup and free the
      * resources used by the backup.
@@ -1473,7 +1473,7 @@ public boolean hasExpireTime() {
      *
      * <pre>
      * Required. The expiration time of the backup, with microseconds
-     * granularity that must be at least 6 hours and at most 30 days
+     * granularity that must be at least 6 hours and at most 90 days
      * from the time the request is received. Once the `expire_time`
      * has passed, Cloud Bigtable will delete the backup and free the
      * resources used by the backup.
@@ -1498,7 +1498,7 @@ public com.google.protobuf.Timestamp getExpireTime() {
      *
      * <pre>
      * Required. The expiration time of the backup, with microseconds
-     * granularity that must be at least 6 hours and at most 30 days
+     * granularity that must be at least 6 hours and at most 90 days
      * from the time the request is received. Once the `expire_time`
      * has passed, Cloud Bigtable will delete the backup and free the
      * resources used by the backup.
@@ -1525,7 +1525,7 @@ public Builder setExpireTime(com.google.protobuf.Timestamp value) {
      *
      * <pre>
      * Required. The expiration time of the backup, with microseconds
-     * granularity that must be at least 6 hours and at most 30 days
+     * granularity that must be at least 6 hours and at most 90 days
      * from the time the request is received. Once the `expire_time`
      * has passed, Cloud Bigtable will delete the backup and free the
      * resources used by the backup.
@@ -1549,7 +1549,7 @@ public Builder setExpireTime(com.google.protobuf.Timestamp.Builder builderForVal
      *
      * <pre>
      * Required. The expiration time of the backup, with microseconds
-     * granularity that must be at least 6 hours and at most 30 days
+     * granularity that must be at least 6 hours and at most 90 days
      * from the time the request is received. Once the `expire_time`
      * has passed, Cloud Bigtable will delete the backup and free the
      * resources used by the backup.
@@ -1579,7 +1579,7 @@ public Builder mergeExpireTime(com.google.protobuf.Timestamp value) {
      *
      * <pre>
      * Required. The expiration time of the backup, with microseconds
-     * granularity that must be at least 6 hours and at most 30 days
+     * granularity that must be at least 6 hours and at most 90 days
      * from the time the request is received. Once the `expire_time`
      * has passed, Cloud Bigtable will delete the backup and free the
      * resources used by the backup.
@@ -1603,7 +1603,7 @@ public Builder clearExpireTime() {
      *
      * <pre>
      * Required. The expiration time of the backup, with microseconds
-     * granularity that must be at least 6 hours and at most 30 days
+     * granularity that must be at least 6 hours and at most 90 days
      * from the time the request is received. Once the `expire_time`
      * has passed, Cloud Bigtable will delete the backup and free the
      * resources used by the backup.
@@ -1622,7 +1622,7 @@ public com.google.protobuf.Timestamp.Builder getExpireTimeBuilder() {
      *
      * <pre>
      * Required. The expiration time of the backup, with microseconds
-     * granularity that must be at least 6 hours and at most 30 days
+     * granularity that must be at least 6 hours and at most 90 days
      * from the time the request is received. Once the `expire_time`
      * has passed, Cloud Bigtable will delete the backup and free the
      * resources used by the backup.
@@ -1645,7 +1645,7 @@ public com.google.protobuf.TimestampOrBuilder getExpireTimeOrBuilder() {
      *
      * <pre>
      * Required. The expiration time of the backup, with microseconds
-     * granularity that must be at least 6 hours and at most 30 days
+     * granularity that must be at least 6 hours and at most 90 days
      * from the time the request is received. Once the `expire_time`
      * has passed, Cloud Bigtable will delete the backup and free the
      * resources used by the backup.
diff --git a/proto-google-cloud-bigtable-admin-v2/src/main/java/com/google/bigtable/admin/v2/BackupOrBuilder.java b/proto-google-cloud-bigtable-admin-v2/src/main/java/com/google/bigtable/admin/v2/BackupOrBuilder.java
index b29a3f788b..cf990353d5 100644
--- a/proto-google-cloud-bigtable-admin-v2/src/main/java/com/google/bigtable/admin/v2/BackupOrBuilder.java
+++ b/proto-google-cloud-bigtable-admin-v2/src/main/java/com/google/bigtable/admin/v2/BackupOrBuilder.java
@@ -104,7 +104,7 @@ public interface BackupOrBuilder
    *
    * <pre>
    * Required. The expiration time of the backup, with microseconds
-   * granularity that must be at least 6 hours and at most 30 days
+   * granularity that must be at least 6 hours and at most 90 days
    * from the time the request is received. Once the `expire_time`
    * has passed, Cloud Bigtable will delete the backup and free the
    * resources used by the backup.
@@ -121,7 +121,7 @@ public interface BackupOrBuilder
    *
    * <pre>
    * Required. The expiration time of the backup, with microseconds
-   * granularity that must be at least 6 hours and at most 30 days
+   * granularity that must be at least 6 hours and at most 90 days
    * from the time the request is received. Once the `expire_time`
    * has passed, Cloud Bigtable will delete the backup and free the
    * resources used by the backup.
@@ -138,7 +138,7 @@ public interface BackupOrBuilder
    *
    * <pre>
    * Required. The expiration time of the backup, with microseconds
-   * granularity that must be at least 6 hours and at most 30 days
+   * granularity that must be at least 6 hours and at most 90 days
    * from the time the request is received. Once the `expire_time`
    * has passed, Cloud Bigtable will delete the backup and free the
    * resources used by the backup.
diff --git a/proto-google-cloud-bigtable-admin-v2/src/main/proto/google/bigtable/admin/v2/table.proto b/proto-google-cloud-bigtable-admin-v2/src/main/proto/google/bigtable/admin/v2/table.proto
index 1e6e0e3836..e597850ebf 100644
--- a/proto-google-cloud-bigtable-admin-v2/src/main/proto/google/bigtable/admin/v2/table.proto
+++ b/proto-google-cloud-bigtable-admin-v2/src/main/proto/google/bigtable/admin/v2/table.proto
@@ -1,4 +1,4 @@
-// Copyright 2022 Google LLC
+// Copyright 2023 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -363,7 +363,7 @@ message Backup {
   ];
 
   // Required. The expiration time of the backup, with microseconds
-  // granularity that must be at least 6 hours and at most 30 days
+  // granularity that must be at least 6 hours and at most 90 days
   // from the time the request is received. Once the `expire_time`
   // has passed, Cloud Bigtable will delete the backup and free the
   // resources used by the backup.