diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index e270843..98926c8 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -7,6 +7,14 @@
 Change log
 ==========
 
+0.18.2 (2026-10-20)
+-------------------
+
+**Bug fix**
+
+- Models are now built using IR version 10 which was released with onnx 1.16.0 and covers all data types supported by Spox.
+
+
 0.18.1 (2026-09-30)
 -------------------
 
diff --git a/src/spox/_utils.py b/src/spox/_utils.py
index 24872c7..7009ccc 100644
--- a/src/spox/_utils.py
+++ b/src/spox/_utils.py
@@ -52,7 +52,7 @@ def make_model(
     functions: list[onnx.FunctionProto] | None = None,
 ) -> onnx.ModelProto:
     """Like ``onnx.helper.make_model`` but with a consistent and conservative IR version that works on older runtimes."""
-    ir_version = 8
+    ir_version = 10
 
     kwargs: dict[str, Any] = {}
     if opset_imports is not None: