diff --git a/{{cookiecutter.project_slug}}/pyproject.toml b/{{cookiecutter.project_slug}}/pyproject.toml
index 81deed0..4fe2320 100644
--- a/{{cookiecutter.project_slug}}/pyproject.toml
+++ b/{{cookiecutter.project_slug}}/pyproject.toml
@@ -1,3 +1,3 @@
 [build-system]
-requires = ["setuptools >= 42.0.0", "wheel", "ansys_tools_protoc_helper"{% for mod in cookiecutter.proto_dependencies['modules'] %}, "{{ mod }}"{% endfor %}]
+requires = ["setuptools >= 42.0.0", "wheel", "ansys_tools_protoc_helper>=0.4.0"{% for mod in cookiecutter.proto_dependencies['modules'] %}, "{{ mod }}"{% endfor %}]
 build-backend = "setuptools.build_meta:__legacy__"
diff --git a/{{cookiecutter.project_slug}}/setup.py b/{{cookiecutter.project_slug}}/setup.py
index e26275f..165fa24 100644
--- a/{{cookiecutter.project_slug}}/setup.py
+++ b/{{cookiecutter.project_slug}}/setup.py
@@ -35,7 +35,7 @@
         url=f"https://github.com/ansys/{package_name}",
         license="MIT",
         python_requires=">=3.7",
-        install_requires=["grpcio~=1.17", "protobuf~=3.19"{% for mod in cookiecutter.proto_dependencies['modules'] %}, "{{ mod }}"{% endfor %}],
+        install_requires=["grpcio~=1.17", "protobuf>=3.19,<5"{% for mod in cookiecutter.proto_dependencies['modules'] %}, "{{ mod }}"{% endfor %}],
         package_dir = {"": "src"},
         packages=setuptools.find_namespace_packages("src", include=("ansys.*",)),
         package_data={