diff --git a/docker/tensorrt/requirements-amd64.txt b/docker/tensorrt/requirements-amd64.txt
index df276a613..c55081c94 100644
--- a/docker/tensorrt/requirements-amd64.txt
+++ b/docker/tensorrt/requirements-amd64.txt
@@ -11,4 +11,4 @@ nvidia-cudnn-cu11 == 8.6.0.*; platform_machine == 'x86_64'
 nvidia-cufft-cu11==10.*; platform_machine == 'x86_64'
 onnx==1.16.*; platform_machine == 'x86_64'
 onnxruntime-gpu==1.18.*; platform_machine == 'x86_64'
-protobuf==3.20.3; platform_machine == 'x86_64'
+protobuf==5.28.3; platform_machine == 'x86_64'
diff --git a/docker/tensorrt/requirements-models-arm64.txt b/docker/tensorrt/requirements-models-arm64.txt
index 3490a7897..23b20490f 100644
--- a/docker/tensorrt/requirements-models-arm64.txt
+++ b/docker/tensorrt/requirements-models-arm64.txt
@@ -1,3 +1,3 @@
 onnx == 1.14.0; platform_machine == 'aarch64'
-protobuf == 3.20.3; platform_machine == 'aarch64'
+protobuf == 5.28.3; platform_machine == 'aarch64'
 numpy == 1.23.*; platform_machine == 'aarch64'  # required by python-tensorrt 8.2.1 (Jetpack 4.6)