diff --git a/pyproject.toml b/pyproject.toml
index c658b7eb6..3cf536cf4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,7 +43,7 @@ dependencies = [
   "mcp>=0.1.0",
   "ml-dtypes>=0.5.3",
   "numpy>=2.2,<2.3",
-  "onnx==1.18",
+  "onnx==1.22.0",
   "onnx-ir>=0.1",
   "onnxruntime-genai-winml==0.14.1",
   "onnxruntime-windowsml==1.24.5.202604171637",