diff --git a/Google.Api.Generator.Tests/ProtoTests/Basic.v1/Testing.Basic.V1/Testing.Basic.V1.csproj b/Google.Api.Generator.Tests/ProtoTests/Basic.v1/Testing.Basic.V1/Testing.Basic.V1.csproj
index e0edafbb..6a19d25c 100644
--- a/Google.Api.Generator.Tests/ProtoTests/Basic.v1/Testing.Basic.V1/Testing.Basic.V1.csproj
+++ b/Google.Api.Generator.Tests/ProtoTests/Basic.v1/Testing.Basic.V1/Testing.Basic.V1.csproj
@@ -40,7 +40,7 @@
 
   <ItemGroup>
     <PackageReference Include="Google.Api.Gax.Grpc.GrpcCore" Version="[3.7.0, 4.0.0)" />
-    <PackageReference Include="Grpc.Core" Version="[2.41.0, 3.0.0)" />
+    <PackageReference Include="Grpc.Core" Version="[2.43.0, 3.0.0)" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.2" PrivateAssets="All" />
   </ItemGroup>
 
diff --git a/Google.Api.Generator.Tests/ProtoTests/Lro/Testing.Lro/Testing.Lro.csproj b/Google.Api.Generator.Tests/ProtoTests/Lro/Testing.Lro/Testing.Lro.csproj
index 565d6bdf..921d8a48 100644
--- a/Google.Api.Generator.Tests/ProtoTests/Lro/Testing.Lro/Testing.Lro.csproj
+++ b/Google.Api.Generator.Tests/ProtoTests/Lro/Testing.Lro/Testing.Lro.csproj
@@ -40,7 +40,7 @@
 
   <ItemGroup>
     <PackageReference Include="Google.Api.Gax.Grpc.GrpcCore" Version="[3.7.0, 4.0.0)" />
-    <PackageReference Include="Grpc.Core" Version="[2.41.0, 3.0.0)" />
+    <PackageReference Include="Grpc.Core" Version="[2.43.0, 3.0.0)" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.2" PrivateAssets="All" />
     <PackageReference Include="Google.LongRunning" Version="[2.3.0, 3.0.0)" />
   </ItemGroup>
diff --git a/Google.Api.Generator.Tests/ProtoTests/Mixins/Testing.Mixins/Testing.Mixins.csproj b/Google.Api.Generator.Tests/ProtoTests/Mixins/Testing.Mixins/Testing.Mixins.csproj
index 9d4640bf..1297532d 100644
--- a/Google.Api.Generator.Tests/ProtoTests/Mixins/Testing.Mixins/Testing.Mixins.csproj
+++ b/Google.Api.Generator.Tests/ProtoTests/Mixins/Testing.Mixins/Testing.Mixins.csproj
@@ -40,7 +40,7 @@
 
   <ItemGroup>
     <PackageReference Include="Google.Api.Gax.Grpc.GrpcCore" Version="[3.7.0, 4.0.0)" />
-    <PackageReference Include="Grpc.Core" Version="[2.41.0, 3.0.0)" />
+    <PackageReference Include="Grpc.Core" Version="[2.43.0, 3.0.0)" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.2" PrivateAssets="All" />
     <PackageReference Include="Google.Cloud.Location" Version="[1.0.0, 2.0.0)" />
     <PackageReference Include="Google.Cloud.Iam.V1" Version="[2.3.0, 3.0.0)" />
diff --git a/Google.Api.Generator.Tests/ProtoTests/Showcase/Google.Showcase.V1Beta1/Google.Showcase.V1Beta1.csproj b/Google.Api.Generator.Tests/ProtoTests/Showcase/Google.Showcase.V1Beta1/Google.Showcase.V1Beta1.csproj
index 5791186f..c3f4cd5e 100644
--- a/Google.Api.Generator.Tests/ProtoTests/Showcase/Google.Showcase.V1Beta1/Google.Showcase.V1Beta1.csproj
+++ b/Google.Api.Generator.Tests/ProtoTests/Showcase/Google.Showcase.V1Beta1/Google.Showcase.V1Beta1.csproj
@@ -40,7 +40,7 @@
 
   <ItemGroup>
     <PackageReference Include="Google.Api.Gax.Grpc.GrpcCore" Version="[3.7.0, 4.0.0)" />
-    <PackageReference Include="Grpc.Core" Version="[2.41.0, 3.0.0)" />
+    <PackageReference Include="Grpc.Core" Version="[2.43.0, 3.0.0)" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.2" PrivateAssets="All" />
     <PackageReference Include="Google.LongRunning" Version="[2.3.0, 3.0.0)" />
   </ItemGroup>
diff --git a/Google.Api.Generator/Generation/CsProjGenerator.cs b/Google.Api.Generator/Generation/CsProjGenerator.cs
index e23c56c0..9af22bda 100644
--- a/Google.Api.Generator/Generation/CsProjGenerator.cs
+++ b/Google.Api.Generator/Generation/CsProjGenerator.cs
@@ -23,7 +23,7 @@ namespace Google.Api.Generator.Generation
     internal static class CsProjGenerator
     {
         private const string GaxGrpcCoreVersion = "[3.7.0, 4.0.0)";
-        private const string GrpcCoreVersion = "[2.41.0, 3.0.0)";
+        private const string GrpcCoreVersion = "[2.43.0, 3.0.0)";
         private const string LroVersion = "[2.3.0, 3.0.0)";
         private const string IamVersion = "[2.3.0, 3.0.0)";
         private const string LocationVersion = "[1.0.0, 2.0.0)";