diff --git a/docs/python/requirements.txt b/docs/python/requirements.txt
index 0b0e5d464b26e..ff90ff6da6bdf 100644
--- a/docs/python/requirements.txt
+++ b/docs/python/requirements.txt
@@ -14,7 +14,7 @@ pydot
 flatbuffers
 numpy<2.0.0
 packaging
-protobuf
+protobuf>=4.25.8
 sympy
 onnx
 sphinx_exec_code
diff --git a/requirements-dev.txt b/requirements-dev.txt
index e89edaa33e98e..96910302d5744 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -9,7 +9,7 @@ onnxmltools
 packaging
 pandas
 parameterized>=0.8.1
-protobuf
+protobuf>=4.25.8
 pydocstyle[toml]
 pytest
 pytest-cov
diff --git a/requirements-training.txt b/requirements-training.txt
index dbfd7305d1bec..a8c34ce53c624 100644
--- a/requirements-training.txt
+++ b/requirements-training.txt
@@ -4,6 +4,6 @@ h5py
 numpy >= 1.16.6
 onnx
 packaging
-protobuf
+protobuf>=4.25.8
 sympy
 setuptools>=61.0.0
diff --git a/requirements.txt b/requirements.txt
index 1255f615a2c9a..0a11280eb2b24 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 flatbuffers
 numpy >= 1.21.6
 packaging
-protobuf
+protobuf>=4.25.8