diff --git a/pyproject.toml b/pyproject.toml
index 7dfb95a..27af624 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ dependencies = [
 dev = ["pytest>=7.0", "pytest-cov>=4.0", "mypy>=1.0", "redis>=5.0", "ruff>=0.4"]
 server = ["grpcio>=1.60", "grpcio-tools>=1.60", "redis>=5.0", "fastapi>=0.110", "uvicorn[standard]>=0.25", "httpx>=0.27", "pydantic>=2.0"]
 gpu = ["torch>=2.0"]
-local-llm = ["transformers>=4.35", "tokenizers>=0.15", "torch>=2.0", "sentencepiece>=0.1", "protobuf>=3.20"]
+local-llm = ["transformers>=4.35", "tokenizers>=0.15", "torch>=2.0", "sentencepiece>=0.1", "protobuf>=7.35.1"]
 
 [project.scripts]
 membrane = "membrane.cli:main"