diff --git a/dotnet/{{cookiecutter.project_class_name}}/{{cookiecutter.project_class_name}}.Api/{{cookiecutter.project_class_name}}.Api.csproj b/dotnet/{{cookiecutter.project_class_name}}/{{cookiecutter.project_class_name}}.Api/{{cookiecutter.project_class_name}}.Api.csproj
index 8622d2d..46a0316 100644
--- a/dotnet/{{cookiecutter.project_class_name}}/{{cookiecutter.project_class_name}}.Api/{{cookiecutter.project_class_name}}.Api.csproj
+++ b/dotnet/{{cookiecutter.project_class_name}}/{{cookiecutter.project_class_name}}.Api/{{cookiecutter.project_class_name}}.Api.csproj
@@ -26,7 +26,7 @@
     <PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="2.0.7" />
 {%- endif %}
 {%- if cookiecutter.cloud_service == 'GCP Cloud Function' %}
-    <PackageReference Include="Google.Cloud.Firestore" Version="3.13.0" />
+    <PackageReference Include="Google.Cloud.Firestore" Version="4.2.0" />
     <PackageReference Include="Google.Cloud.Functions.Hosting" Version="3.0.1" />
 {%- endif %}
 {%- if cookiecutter.cloud_service == 'AWS Lambda' %}