diff --git a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/AssetOuterClass.java b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/AssetOuterClass.java
index c60e79cade03..0a1b0c5df296 100644
--- a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/AssetOuterClass.java
+++ b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/AssetOuterClass.java
@@ -60,10 +60,11 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "(\t\022\027\n\017resource_owners\030\005 \003(\t\032 \n\tIamPolicy"
           + "\022\023\n\013policy_blob\030\001 \001(\t\032Q\n\027ResourcePropert"
           + "iesEntry\022\013\n\003key\030\001 \001(\t\022%\n\005value\030\002 \001(\0132\026.g"
-          + "oogle.protobuf.Value:\0028\001Bt\n\"com.google.c"
-          + "loud.securitycenter.v1P\001ZLgoogle.golang."
-          + "org/genproto/googleapis/cloud/securityce"
-          + "nter/v1;securitycenterb\006proto3"
+          + "oogle.protobuf.Value:\0028\001B\225\001\n\"com.google."
+          + "cloud.securitycenter.v1P\001ZLgoogle.golang"
+          + ".org/genproto/googleapis/cloud/securityc"
+          + "enter/v1;securitycenter\252\002\036Google.Cloud.S"
+          + "ecurityCenter.V1b\006proto3"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
         new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
diff --git a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/FindingOuterClass.java b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/FindingOuterClass.java
index 18990019673b..e0c07e97bbe6 100644
--- a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/FindingOuterClass.java
+++ b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/FindingOuterClass.java
@@ -48,10 +48,11 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "Timestamp\032O\n\025SourcePropertiesEntry\022\013\n\003ke"
           + "y\030\001 \001(\t\022%\n\005value\030\002 \001(\0132\026.google.protobuf"
           + ".Value:\0028\001\"8\n\005State\022\025\n\021STATE_UNSPECIFIED"
-          + "\020\000\022\n\n\006ACTIVE\020\001\022\014\n\010INACTIVE\020\002Bt\n\"com.goog"
-          + "le.cloud.securitycenter.v1P\001ZLgoogle.gol"
-          + "ang.org/genproto/googleapis/cloud/securi"
-          + "tycenter/v1;securitycenterb\006proto3"
+          + "\020\000\022\n\n\006ACTIVE\020\001\022\014\n\010INACTIVE\020\002B\225\001\n\"com.goo"
+          + "gle.cloud.securitycenter.v1P\001ZLgoogle.go"
+          + "lang.org/genproto/googleapis/cloud/secur"
+          + "itycenter/v1;securitycenter\252\002\036Google.Clo"
+          + "ud.SecurityCenter.V1b\006proto3"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
         new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
diff --git a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/OrganizationSettingsOuterClass.java b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/OrganizationSettingsOuterClass.java
index b207cead2503..0144b7a5839a 100644
--- a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/OrganizationSettingsOuterClass.java
+++ b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/OrganizationSettingsOuterClass.java
@@ -42,10 +42,11 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + ".v1.OrganizationSettings.AssetDiscoveryC"
           + "onfig.InclusionMode\"N\n\rInclusionMode\022\036\n\032"
           + "INCLUSION_MODE_UNSPECIFIED\020\000\022\020\n\014INCLUDE_"
-          + "ONLY\020\001\022\013\n\007EXCLUDE\020\002J\004\010\004\020\005J\004\010\005\020\006Bt\n\"com.g"
-          + "oogle.cloud.securitycenter.v1P\001ZLgoogle."
-          + "golang.org/genproto/googleapis/cloud/sec"
-          + "uritycenter/v1;securitycenterb\006proto3"
+          + "ONLY\020\001\022\013\n\007EXCLUDE\020\002J\004\010\004\020\005J\004\010\005\020\006B\225\001\n\"com."
+          + "google.cloud.securitycenter.v1P\001ZLgoogle"
+          + ".golang.org/genproto/googleapis/cloud/se"
+          + "curitycenter/v1;securitycenter\252\002\036Google."
+          + "Cloud.SecurityCenter.V1b\006proto3"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
         new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
diff --git a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/SecurityMarksOuterClass.java b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/SecurityMarksOuterClass.java
index 214907fe85f3..0a9ad0c57199 100644
--- a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/SecurityMarksOuterClass.java
+++ b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/SecurityMarksOuterClass.java
@@ -35,10 +35,11 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "SecurityMarks\022\014\n\004name\030\001 \001(\t\022G\n\005marks\030\002 \003"
           + "(\01328.google.cloud.securitycenter.v1.Secu"
           + "rityMarks.MarksEntry\032,\n\nMarksEntry\022\013\n\003ke"
-          + "y\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001Bt\n\"com.google"
-          + ".cloud.securitycenter.v1P\001ZLgoogle.golan"
-          + "g.org/genproto/googleapis/cloud/security"
-          + "center/v1;securitycenterb\006proto3"
+          + "y\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001B\225\001\n\"com.googl"
+          + "e.cloud.securitycenter.v1P\001ZLgoogle.gola"
+          + "ng.org/genproto/googleapis/cloud/securit"
+          + "ycenter/v1;securitycenter\252\002\036Google.Cloud"
+          + ".SecurityCenter.V1b\006proto3"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
         new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
diff --git a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/SecuritycenterService.java b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/SecuritycenterService.java
index b8c7ec2b685c..acd430ecef07 100644
--- a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/SecuritycenterService.java
+++ b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/SecuritycenterService.java
@@ -311,10 +311,11 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "organizations/*/assets/*/securityMarks}:"
           + "\016security_marksZ^2L/v1/{security_marks.n"
           + "ame=organizations/*/sources/*/findings/*"
-          + "/securityMarks}:\016security_marksBt\n\"com.g"
-          + "oogle.cloud.securitycenter.v1P\001ZLgoogle."
-          + "golang.org/genproto/googleapis/cloud/sec"
-          + "uritycenter/v1;securitycenterb\006proto3"
+          + "/securityMarks}:\016security_marksB\225\001\n\"com."
+          + "google.cloud.securitycenter.v1P\001ZLgoogle"
+          + ".golang.org/genproto/googleapis/cloud/se"
+          + "curitycenter/v1;securitycenter\252\002\036Google."
+          + "Cloud.SecurityCenter.V1b\006proto3"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
         new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
diff --git a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/SourceOuterClass.java b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/SourceOuterClass.java
index 0402ab4bf884..f38499291a14 100644
--- a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/SourceOuterClass.java
+++ b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/java/com/google/cloud/securitycenter/v1/SourceOuterClass.java
@@ -29,10 +29,11 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "proto\022\036google.cloud.securitycenter.v1\032\034g"
           + "oogle/api/annotations.proto\"G\n\006Source\022\014\n"
           + "\004name\030\001 \001(\t\022\024\n\014display_name\030\002 \001(\t\022\023\n\013des"
-          + "cription\030\003 \001(\tJ\004\010\004\020\005Bt\n\"com.google.cloud"
-          + ".securitycenter.v1P\001ZLgoogle.golang.org/"
-          + "genproto/googleapis/cloud/securitycenter"
-          + "/v1;securitycenterb\006proto3"
+          + "cription\030\003 \001(\tJ\004\010\004\020\005B\225\001\n\"com.google.clou"
+          + "d.securitycenter.v1P\001ZLgoogle.golang.org"
+          + "/genproto/googleapis/cloud/securitycente"
+          + "r/v1;securitycenter\252\002\036Google.Cloud.Secur"
+          + "ityCenter.V1b\006proto3"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
         new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
diff --git a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/asset.proto b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/asset.proto
index 7508fc62afb7..97b5bfb0b94e 100644
--- a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/asset.proto
+++ b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/asset.proto
@@ -22,6 +22,7 @@ import "google/cloud/securitycenter/v1/security_marks.proto";
 import "google/protobuf/struct.proto";
 import "google/protobuf/timestamp.proto";
 
+option csharp_namespace = "Google.Cloud.SecurityCenter.V1";
 option go_package = "google.golang.org/genproto/googleapis/cloud/securitycenter/v1;securitycenter";
 option java_multiple_files = true;
 option java_package = "com.google.cloud.securitycenter.v1";
diff --git a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/finding.proto b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/finding.proto
index 992598cffb18..0c20b85f693d 100644
--- a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/finding.proto
+++ b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/finding.proto
@@ -22,6 +22,7 @@ import "google/cloud/securitycenter/v1/security_marks.proto";
 import "google/protobuf/struct.proto";
 import "google/protobuf/timestamp.proto";
 
+option csharp_namespace = "Google.Cloud.SecurityCenter.V1";
 option go_package = "google.golang.org/genproto/googleapis/cloud/securitycenter/v1;securitycenter";
 option java_multiple_files = true;
 option java_package = "com.google.cloud.securitycenter.v1";
diff --git a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/organization_settings.proto b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/organization_settings.proto
index c3c12a28172f..92c2f9d5b850 100644
--- a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/organization_settings.proto
+++ b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/organization_settings.proto
@@ -19,6 +19,7 @@ package google.cloud.securitycenter.v1;
 
 import "google/api/annotations.proto";
 
+option csharp_namespace = "Google.Cloud.SecurityCenter.V1";
 option go_package = "google.golang.org/genproto/googleapis/cloud/securitycenter/v1;securitycenter";
 option java_multiple_files = true;
 option java_package = "com.google.cloud.securitycenter.v1";
diff --git a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/security_marks.proto b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/security_marks.proto
index b4197e74e4ba..00328a53d552 100644
--- a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/security_marks.proto
+++ b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/security_marks.proto
@@ -19,6 +19,7 @@ package google.cloud.securitycenter.v1;
 
 import "google/api/annotations.proto";
 
+option csharp_namespace = "Google.Cloud.SecurityCenter.V1";
 option go_package = "google.golang.org/genproto/googleapis/cloud/securitycenter/v1;securitycenter";
 option java_multiple_files = true;
 option java_package = "com.google.cloud.securitycenter.v1";
diff --git a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/securitycenter_service.proto b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/securitycenter_service.proto
index a8a05993a48e..f49fb8528d0f 100644
--- a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/securitycenter_service.proto
+++ b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/securitycenter_service.proto
@@ -32,6 +32,7 @@ import "google/protobuf/field_mask.proto";
 import "google/protobuf/struct.proto";
 import "google/protobuf/timestamp.proto";
 
+option csharp_namespace = "Google.Cloud.SecurityCenter.V1";
 option go_package = "google.golang.org/genproto/googleapis/cloud/securitycenter/v1;securitycenter";
 option java_multiple_files = true;
 option java_package = "com.google.cloud.securitycenter.v1";
diff --git a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/source.proto b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/source.proto
index e58a0596d613..7d835ec05a74 100644
--- a/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/source.proto
+++ b/google-api-grpc/proto-google-cloud-securitycenter-v1/src/main/proto/google/cloud/securitycenter/v1/source.proto
@@ -19,6 +19,7 @@ package google.cloud.securitycenter.v1;
 
 import "google/api/annotations.proto";
 
+option csharp_namespace = "Google.Cloud.SecurityCenter.V1";
 option go_package = "google.golang.org/genproto/googleapis/cloud/securitycenter/v1;securitycenter";
 option java_multiple_files = true;
 option java_package = "com.google.cloud.securitycenter.v1";
diff --git a/google-cloud-clients/google-cloud-securitycenter/synth.metadata b/google-cloud-clients/google-cloud-securitycenter/synth.metadata
index a3237ad51a27..e0717b650ab4 100644
--- a/google-cloud-clients/google-cloud-securitycenter/synth.metadata
+++ b/google-cloud-clients/google-cloud-securitycenter/synth.metadata
@@ -1,19 +1,19 @@
 {
-  "updateTime": "2019-03-07T21:20:30.007235Z",
+  "updateTime": "2019-03-12T07:50:35.842098Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.16.15",
-        "dockerImage": "googleapis/artman@sha256:9caadfa59d48224cba5f3217eb9d61a155b78ccf31e628abef385bc5b7ed3bd2"
+        "version": "0.16.16",
+        "dockerImage": "googleapis/artman@sha256:30babbfce7f05a62b1892c63c575aa2c8c502eb4bcc8f3bb90ec83e955d5d319"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "6df9a80f147c4349949f6573b5275deebddd3ba8",
-        "internalRef": "237262681"
+        "sha": "abd1c9a99c5cd7179d8e5e0c8d4c8e761054cc78",
+        "internalRef": "237945492"
       }
     }
   ],