diff --git a/monitoring/api/AlertSample/AlertSample.csproj b/monitoring/api/AlertSample/AlertSample.csproj
index 8f88b96acc0..88f1c21023c 100644
--- a/monitoring/api/AlertSample/AlertSample.csproj
+++ b/monitoring/api/AlertSample/AlertSample.csproj
@@ -3,7 +3,7 @@
     <ProjectReference Include="..\..\..\commandlineutil\Lib\CommandLineUtil.csproj" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Google.Cloud.Monitoring.V3" Version="3.11.0" />
+    <PackageReference Include="Google.Cloud.Monitoring.V3" Version="3.12.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
   </ItemGroup>
   <PropertyGroup>
diff --git a/monitoring/api/AlertTestFixture/AlertTestFixture.csproj b/monitoring/api/AlertTestFixture/AlertTestFixture.csproj
index a8d6b547416..66d4f687c99 100644
--- a/monitoring/api/AlertTestFixture/AlertTestFixture.csproj
+++ b/monitoring/api/AlertTestFixture/AlertTestFixture.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Google.Cloud.Monitoring.V3" Version="3.11.0" />
+    <PackageReference Include="Google.Cloud.Monitoring.V3" Version="3.12.0" />
   </ItemGroup>
 
 </Project>
diff --git a/monitoring/api/MonitoringSample/Monitoring.csproj b/monitoring/api/MonitoringSample/Monitoring.csproj
index 3c79a6c51c6..615c1e062fe 100644
--- a/monitoring/api/MonitoringSample/Monitoring.csproj
+++ b/monitoring/api/MonitoringSample/Monitoring.csproj
@@ -6,6 +6,6 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="CommandLineParser" Version="2.9.1" />
-    <PackageReference Include="Google.Cloud.Monitoring.V3" Version="3.11.0" />
+    <PackageReference Include="Google.Cloud.Monitoring.V3" Version="3.12.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/monitoring/api/QuickStart/QuickStart.csproj b/monitoring/api/QuickStart/QuickStart.csproj
index eee8fdfa456..53d7c003ff3 100644
--- a/monitoring/api/QuickStart/QuickStart.csproj
+++ b/monitoring/api/QuickStart/QuickStart.csproj
@@ -4,6 +4,6 @@
     <TargetFramework>net6.0</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Google.Cloud.Monitoring.V3" Version="3.11.0" />
+    <PackageReference Include="Google.Cloud.Monitoring.V3" Version="3.12.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/monitoring/api/UptimeCheckSample/UptimeCheck.csproj b/monitoring/api/UptimeCheckSample/UptimeCheck.csproj
index 7420cd05ab7..6d3f3b359cc 100644
--- a/monitoring/api/UptimeCheckSample/UptimeCheck.csproj
+++ b/monitoring/api/UptimeCheckSample/UptimeCheck.csproj
@@ -5,7 +5,7 @@
     <TargetFramework>net6.0</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Google.Cloud.Monitoring.V3" Version="3.11.0" />
+    <PackageReference Include="Google.Cloud.Monitoring.V3" Version="3.12.0" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\..\commandlineutil\Lib\CommandLineUtil.csproj" />