diff --git a/dpkd/transformers/examples/research_projects/decision_transformer/requirements.txt b/dpkd/transformers/examples/research_projects/decision_transformer/requirements.txt
index 2d510dde..1e108352 100644
--- a/dpkd/transformers/examples/research_projects/decision_transformer/requirements.txt
+++ b/dpkd/transformers/examples/research_projects/decision_transformer/requirements.txt
@@ -119,7 +119,7 @@ nltk==3.7
 numba==0.55.1
 numpy==1.22.3
 oauthlib==3.2.2
-onnx==1.13.0
+onnx==1.21.0
 onnxconverter-common==1.9.0
 opt-einsum==3.3.0
 optax==0.1.1