diff --git a/cookiecutter/{{cookiecutter.github_repo_name}}/pyproject.toml b/cookiecutter/{{cookiecutter.github_repo_name}}/pyproject.toml
index ba211d69..cbe3edad 100644
--- a/cookiecutter/{{cookiecutter.github_repo_name}}/pyproject.toml
+++ b/cookiecutter/{{cookiecutter.github_repo_name}}/pyproject.toml
@@ -11,9 +11,9 @@ requires = [
   # sure the code is generated using the minimum supported versions, as older
   # versions can't work with code that was generated with newer versions.
   # https://protobuf.dev/support/cross-version-runtime-guarantee/#backwards
-  "protobuf == 5.29.3",
-  "grpcio-tools == 1.70.0",
-  "grpcio == 1.70.0",
+  "protobuf == 6.33.4",
+  "grpcio-tools == 1.76.0",
+  "grpcio == 1.76.0",
 {%- endif %}
 ]
 build-backend = "setuptools.build_meta"
@@ -64,11 +64,11 @@ dependencies = [
   # We can't widen beyond the current value unless we bump the minimum
   # requirements too because of protobuf cross-version runtime guarantees:
   # https://protobuf.dev/support/cross-version-runtime-guarantee/#major
-  "protobuf >= 6.32.0, < 8", # Do not widen beyond 8!
+  "protobuf >= 6.33.4, < 8", # Do not widen beyond 8!
   # We couldn't find any document with a spec about the cross-version runtime
   # guarantee for grpcio, so unless we find one in the future, we'll assume
   # major version jumps are not compatible
-  "grpcio >= 1.74.0, < 2", # Do not widen beyond 2!
+  "grpcio >= 1.76.0, < 2", # Do not widen beyond 2!
 ]
 {%- else %}
 dependencies = [
diff --git a/pyproject.toml b/pyproject.toml
index de8acd10..b80609c8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -56,7 +56,7 @@ compile_proto = "frequenz.repo.config.setuptools.grpc_tools:CompileProto"
 actor = []
 api = [
   "grpcio-tools >= 1.47.0, < 2",
-  "mypy-protobuf >= 3.0.0, < 4",
+  "mypy-protobuf >= 3.0.0, < 6",
   "setuptools >= 67.6.0, < 81",
 ]
 app = []
diff --git a/tests_golden/integration/test_cookiecutter_generation/api/frequenz-api-test/pyproject.toml b/tests_golden/integration/test_cookiecutter_generation/api/frequenz-api-test/pyproject.toml
index 75a78d90..a7a7b4f7 100644
--- a/tests_golden/integration/test_cookiecutter_generation/api/frequenz-api-test/pyproject.toml
+++ b/tests_golden/integration/test_cookiecutter_generation/api/frequenz-api-test/pyproject.toml
@@ -10,9 +10,9 @@ requires = [
   # sure the code is generated using the minimum supported versions, as older
   # versions can't work with code that was generated with newer versions.
   # https://protobuf.dev/support/cross-version-runtime-guarantee/#backwards
-  "protobuf == 5.29.3",
-  "grpcio-tools == 1.70.0",
-  "grpcio == 1.70.0",
+  "protobuf == 6.33.4",
+  "grpcio-tools == 1.76.0",
+  "grpcio == 1.76.0",
 ]
 build-backend = "setuptools.build_meta"
 
@@ -39,11 +39,11 @@ dependencies = [
   # We can't widen beyond the current value unless we bump the minimum
   # requirements too because of protobuf cross-version runtime guarantees:
   # https://protobuf.dev/support/cross-version-runtime-guarantee/#major
-  "protobuf >= 6.32.0, < 8", # Do not widen beyond 8!
+  "protobuf >= 6.33.4, < 8", # Do not widen beyond 8!
   # We couldn't find any document with a spec about the cross-version runtime
   # guarantee for grpcio, so unless we find one in the future, we'll assume
   # major version jumps are not compatible
-  "grpcio >= 1.74.0, < 2", # Do not widen beyond 2!
+  "grpcio >= 1.76.0, < 2", # Do not widen beyond 2!
 ]
 dynamic = ["version"]