diff --git a/apis/Google.Cloud.SecurityCenter.V1/Google.Cloud.SecurityCenter.V1/Google.Cloud.SecurityCenter.V1.csproj b/apis/Google.Cloud.SecurityCenter.V1/Google.Cloud.SecurityCenter.V1/Google.Cloud.SecurityCenter.V1.csproj
index 144cc713c6d6..dcf6e7dd20bc 100644
--- a/apis/Google.Cloud.SecurityCenter.V1/Google.Cloud.SecurityCenter.V1/Google.Cloud.SecurityCenter.V1.csproj
+++ b/apis/Google.Cloud.SecurityCenter.V1/Google.Cloud.SecurityCenter.V1/Google.Cloud.SecurityCenter.V1.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Version>3.19.0</Version>
+    <Version>3.20.0</Version>
     <TargetFrameworks>netstandard2.0;net462</TargetFrameworks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <Description>Recommended Google client library to access the Google Cloud Security Command Center API (v1), which helps security teams gather data, identify threats, and act on them before they result in business damage or loss.</Description>
diff --git a/apis/Google.Cloud.SecurityCenter.V1/docs/history.md b/apis/Google.Cloud.SecurityCenter.V1/docs/history.md
index 0c11268a7adf..9b021c54bc34 100644
--- a/apis/Google.Cloud.SecurityCenter.V1/docs/history.md
+++ b/apis/Google.Cloud.SecurityCenter.V1/docs/history.md
@@ -1,5 +1,11 @@
 # Version history
 
+## Version 3.20.0, released 2024-04-19
+
+### New features
+
+- Add cloud_armor field to finding's list of attributes ([commit c21e410](https://github.com/googleapis/google-cloud-dotnet/commit/c21e4103c713f0d46c9d730b979f240f7eb4cfaf))
+
 ## Version 3.19.0, released 2024-03-28
 
 ### New features
diff --git a/apis/apis.json b/apis/apis.json
index 8dcca3089e52..bcb9a5fc6a91 100644
--- a/apis/apis.json
+++ b/apis/apis.json
@@ -4233,7 +4233,7 @@
       "protoPath": "google/cloud/securitycenter/v1",
       "productName": "Google Cloud Security Command Center",
       "productUrl": "https://cloud.google.com/security-command-center/",
-      "version": "3.19.0",
+      "version": "3.20.0",
       "type": "grpc",
       "description": "Recommended Google client library to access the Google Cloud Security Command Center API (v1), which helps security teams gather data, identify threats, and act on them before they result in business damage or loss.",
       "dependencies": {