diff --git a/PyTorch/SpeechSynthesis/Tacotron2/trtis_cpp/src/trt/requirements.txt b/PyTorch/SpeechSynthesis/Tacotron2/trtis_cpp/src/trt/requirements.txt
index 6859d0219..be9c1e276 100644
--- a/PyTorch/SpeechSynthesis/Tacotron2/trtis_cpp/src/trt/requirements.txt
+++ b/PyTorch/SpeechSynthesis/Tacotron2/trtis_cpp/src/trt/requirements.txt
@@ -1,4 +1,4 @@
 torch==1.3.0
-onnx==1.5.0
+onnx==1.13.0
 scipy==1.3.1
 librosa==0.7.0