diff --git a/pyproject.toml b/pyproject.toml
index dc53b0f2..0bf7cbf5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ dependencies = [
     "evaluate",
     "colorama",
     "boto3",
-    "protobuf==4.25.3",
+    "protobuf==5.29.6",
     "sglang",
     "ollama",
     "requests>=2.25.0",
diff --git a/uv.lock b/uv.lock
index 6199bbba..f81e65ed 100644
--- a/uv.lock
+++ b/uv.lock
@@ -2014,7 +2014,7 @@ requires-dist = [
     { name = "pandas", marker = "extra == 'documents'", specifier = ">=2.2.0" },
     { name = "pathspec", specifier = ">=0.12.1" },
     { name = "pdfplumber", specifier = ">=0.11.0" },
-    { name = "protobuf", specifier = "==4.25.3" },
+    { name = "protobuf", specifier = "==5.29.6" },
     { name = "psutil", specifier = ">=5.8.0" },
     { name = "pybind11", specifier = ">=3.0.0" },
     { name = "pymupdf", specifier = ">=1.26.0" },
@@ -3519,16 +3519,16 @@ wheels = [
 
 [[package]]
 name = "protobuf"
-version = "4.25.3"
+version = "5.29.6"
 source = { registry = "https://pypi.org/simple" }
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 [[package]]