diff --git a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/IamCredentialsClient.java b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/IamCredentialsClient.java
index 318ad4fb44e5..c914b58778ba 100644
--- a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/IamCredentialsClient.java
+++ b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/IamCredentialsClient.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Google LLC
+ * Copyright 2019 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/IamCredentialsSettings.java b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/IamCredentialsSettings.java
index 8ddcd066b153..9a433eab05a9 100644
--- a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/IamCredentialsSettings.java
+++ b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/IamCredentialsSettings.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Google LLC
+ * Copyright 2019 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/package-info.java b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/package-info.java
index 8a52bac81454..61f2ddfa4165 100644
--- a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/package-info.java
+++ b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/package-info.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Google LLC
+ * Copyright 2019 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/GrpcIamCredentialsCallableFactory.java b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/GrpcIamCredentialsCallableFactory.java
index 38aa9a995eed..94a89293d3bd 100644
--- a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/GrpcIamCredentialsCallableFactory.java
+++ b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/GrpcIamCredentialsCallableFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Google LLC
+ * Copyright 2019 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/GrpcIamCredentialsStub.java b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/GrpcIamCredentialsStub.java
index 7d633fa7386a..ec3c3a89f963 100644
--- a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/GrpcIamCredentialsStub.java
+++ b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/GrpcIamCredentialsStub.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Google LLC
+ * Copyright 2019 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/IamCredentialsStub.java b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/IamCredentialsStub.java
index c8f06442cdb6..5af6a6e44f90 100644
--- a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/IamCredentialsStub.java
+++ b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/IamCredentialsStub.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Google LLC
+ * Copyright 2019 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/IamCredentialsStubSettings.java b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/IamCredentialsStubSettings.java
index e2b3a0656e90..76185bd70529 100644
--- a/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/IamCredentialsStubSettings.java
+++ b/google-cloud-clients/google-cloud-iamcredentials/src/main/java/com/google/cloud/iam/credentials/v1/stub/IamCredentialsStubSettings.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Google LLC
+ * Copyright 2019 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/google-cloud-clients/google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/IamCredentialsClientTest.java b/google-cloud-clients/google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/IamCredentialsClientTest.java
index 772298437149..c84bf6668005 100644
--- a/google-cloud-clients/google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/IamCredentialsClientTest.java
+++ b/google-cloud-clients/google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/IamCredentialsClientTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Google LLC
+ * Copyright 2019 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/google-cloud-clients/google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/MockIAMCredentials.java b/google-cloud-clients/google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/MockIAMCredentials.java
index 5b89bfa9de2f..492a337cb564 100644
--- a/google-cloud-clients/google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/MockIAMCredentials.java
+++ b/google-cloud-clients/google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/MockIAMCredentials.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Google LLC
+ * Copyright 2019 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/google-cloud-clients/google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/MockIAMCredentialsImpl.java b/google-cloud-clients/google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/MockIAMCredentialsImpl.java
index e44b8a4c179e..17940f07aa07 100644
--- a/google-cloud-clients/google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/MockIAMCredentialsImpl.java
+++ b/google-cloud-clients/google-cloud-iamcredentials/src/test/java/com/google/cloud/iam/credentials/v1/MockIAMCredentialsImpl.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Google LLC
+ * Copyright 2019 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/google-cloud-clients/google-cloud-iamcredentials/synth.metadata b/google-cloud-clients/google-cloud-iamcredentials/synth.metadata
index 0f4f16349096..4310fc59431b 100644
--- a/google-cloud-clients/google-cloud-iamcredentials/synth.metadata
+++ b/google-cloud-clients/google-cloud-iamcredentials/synth.metadata
@@ -1,19 +1,19 @@
 {
-  "updateTime": "2019-01-03T17:46:37.271512Z",
+  "updateTime": "2019-01-17T08:44:16.541917Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.16.4",
-        "dockerImage": "googleapis/artman@sha256:8b45fae963557c3299921037ecbb86f0689f41b1b4aea73408ebc50562cb2857"
+        "version": "0.16.6",
+        "dockerImage": "googleapis/artman@sha256:12722f2ca3fbc3b53cc6aa5f0e569d7d221b46bd876a2136497089dec5e3634e"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "2a5caab4315cb5ab3d5c97c90c6d4e9441052b16",
-        "internalRef": "227195651"
+        "sha": "0ac60e21a1aa86c07c1836865b35308ba8178b05",
+        "internalRef": "229626798"
       }
     }
   ],