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 ba51b2d24..1676ea021 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
@@ -43,9 +43,9 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Lists;
 import java.io.IOException;
+import java.time.Duration;
 import java.util.List;
 import javax.annotation.Generated;
-import org.threeten.bp.Duration;
 
 // AUTO-GENERATED DOCUMENTATION AND CLASS.
 /**
@@ -252,35 +252,35 @@ public static class Builder extends StubSettings.Builder<BigQueryReadStubSetting
       RetrySettings settings = null;
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(600000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(600000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(600000L))
-              .setTotalTimeout(Duration.ofMillis(600000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(600000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(600000L))
               .build();
       definitions.put("retry_policy_0_params", settings);
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(86400000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(86400000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(86400000L))
-              .setTotalTimeout(Duration.ofMillis(86400000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(86400000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(86400000L))
               .build();
       definitions.put("retry_policy_1_params", settings);
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(600000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(600000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(600000L))
-              .setTotalTimeout(Duration.ofMillis(600000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(600000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(600000L))
               .build();
       definitions.put("retry_policy_2_params", settings);
       RETRY_PARAM_DEFINITIONS = definitions.build();
diff --git a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/stub/BigQueryWriteStubSettings.java b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/stub/BigQueryWriteStubSettings.java
index ed5fafc88..4477d133f 100644
--- a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/stub/BigQueryWriteStubSettings.java
+++ b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/stub/BigQueryWriteStubSettings.java
@@ -48,9 +48,9 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Lists;
 import java.io.IOException;
+import java.time.Duration;
 import java.util.List;
 import javax.annotation.Generated;
-import org.threeten.bp.Duration;
 
 // AUTO-GENERATED DOCUMENTATION AND CLASS.
 /**
@@ -291,35 +291,35 @@ public static class Builder extends StubSettings.Builder<BigQueryWriteStubSettin
       RetrySettings settings = null;
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(10000L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(10000L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(120000L))
-              .setInitialRpcTimeout(Duration.ofMillis(1200000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(120000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(1200000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(1200000L))
-              .setTotalTimeout(Duration.ofMillis(1200000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(1200000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(1200000L))
               .build();
       definitions.put("retry_policy_5_params", settings);
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(86400000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(86400000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(86400000L))
-              .setTotalTimeout(Duration.ofMillis(86400000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(86400000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(86400000L))
               .build();
       definitions.put("retry_policy_3_params", settings);
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(600000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(600000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(600000L))
-              .setTotalTimeout(Duration.ofMillis(600000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(600000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(600000L))
               .build();
       definitions.put("retry_policy_4_params", settings);
       RETRY_PARAM_DEFINITIONS = definitions.build();
diff --git a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha/stub/MetastorePartitionServiceStubSettings.java b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha/stub/MetastorePartitionServiceStubSettings.java
index c709c229c..9cca53283 100644
--- a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha/stub/MetastorePartitionServiceStubSettings.java
+++ b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1alpha/stub/MetastorePartitionServiceStubSettings.java
@@ -48,9 +48,9 @@
 import com.google.common.collect.Lists;
 import com.google.protobuf.Empty;
 import java.io.IOException;
+import java.time.Duration;
 import java.util.List;
 import javax.annotation.Generated;
-import org.threeten.bp.Duration;
 
 // AUTO-GENERATED DOCUMENTATION AND CLASS.
 /**
@@ -291,21 +291,21 @@ public static class Builder
       RetrySettings settings = null;
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(240000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(240000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(240000L))
-              .setTotalTimeout(Duration.ofMillis(240000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(240000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(240000L))
               .build();
       definitions.put("retry_policy_0_params", settings);
       settings =
           RetrySettings.newBuilder()
-              .setInitialRpcTimeout(Duration.ofMillis(240000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(240000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(240000L))
-              .setTotalTimeout(Duration.ofMillis(240000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(240000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(240000L))
               .build();
       definitions.put("no_retry_1_params", settings);
       RETRY_PARAM_DEFINITIONS = definitions.build();
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 b47d359a4..1e8ddb25b 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
@@ -40,9 +40,9 @@
 import com.google.common.collect.Lists;
 import com.google.protobuf.Empty;
 import java.io.IOException;
+import java.time.Duration;
 import java.util.List;
 import javax.annotation.Generated;
-import org.threeten.bp.Duration;
 
 // AUTO-GENERATED DOCUMENTATION AND CLASS.
 /**
@@ -284,35 +284,35 @@ public static class Builder extends StubSettings.Builder<BigQueryStorageStubSett
       RetrySettings settings = null;
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(600000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(600000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(600000L))
-              .setTotalTimeout(Duration.ofMillis(600000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(600000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(600000L))
               .build();
       definitions.put("retry_policy_0_params", settings);
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(86400000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(86400000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(86400000L))
-              .setTotalTimeout(Duration.ofMillis(86400000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(86400000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(86400000L))
               .build();
       definitions.put("retry_policy_1_params", settings);
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(600000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(600000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(600000L))
-              .setTotalTimeout(Duration.ofMillis(600000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(600000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(600000L))
               .build();
       definitions.put("retry_policy_2_params", settings);
       RETRY_PARAM_DEFINITIONS = definitions.build();
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 4d8439071..5d770d33f 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
@@ -44,9 +44,9 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Lists;
 import java.io.IOException;
+import java.time.Duration;
 import java.util.List;
 import javax.annotation.Generated;
-import org.threeten.bp.Duration;
 
 // AUTO-GENERATED DOCUMENTATION AND CLASS.
 /**
@@ -254,35 +254,35 @@ public static class Builder extends StubSettings.Builder<BigQueryReadStubSetting
       RetrySettings settings = null;
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(600000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(600000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(600000L))
-              .setTotalTimeout(Duration.ofMillis(600000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(600000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(600000L))
               .build();
       definitions.put("retry_policy_0_params", settings);
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(86400000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(86400000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(86400000L))
-              .setTotalTimeout(Duration.ofMillis(86400000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(86400000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(86400000L))
               .build();
       definitions.put("retry_policy_1_params", settings);
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(600000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(600000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(600000L))
-              .setTotalTimeout(Duration.ofMillis(600000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(600000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(600000L))
               .build();
       definitions.put("retry_policy_2_params", settings);
       RETRY_PARAM_DEFINITIONS = definitions.build();
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 ae9e4134d..be2dc3521 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
@@ -49,9 +49,9 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Lists;
 import java.io.IOException;
+import java.time.Duration;
 import java.util.List;
 import javax.annotation.Generated;
-import org.threeten.bp.Duration;
 
 // AUTO-GENERATED DOCUMENTATION AND CLASS.
 /**
@@ -326,35 +326,35 @@ public static class Builder extends StubSettings.Builder<BigQueryWriteStubSettin
       RetrySettings settings = null;
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(600000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(600000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(600000L))
-              .setTotalTimeout(Duration.ofMillis(600000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(600000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(600000L))
               .build();
       definitions.put("retry_policy_3_params", settings);
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(86400000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(86400000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(86400000L))
-              .setTotalTimeout(Duration.ofMillis(86400000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(86400000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(86400000L))
               .build();
       definitions.put("retry_policy_4_params", settings);
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(600000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(600000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(600000L))
-              .setTotalTimeout(Duration.ofMillis(600000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(600000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(600000L))
               .build();
       definitions.put("retry_policy_5_params", settings);
       RETRY_PARAM_DEFINITIONS = definitions.build();