diff --git a/onnxconverter_common/float16.py b/onnxconverter_common/float16.py
index 18a1a0f..6a02a68 100644
--- a/onnxconverter_common/float16.py
+++ b/onnxconverter_common/float16.py
@@ -82,7 +82,7 @@ def make_value_info_from_tensor(tensor):
                          'FeatureVectorizer', 'Imputer', 'LabelEncoder', 'LinearClassifier', 'LinearRegressor',
                          'Normalizer', 'OneHotEncoder', 'SVMClassifier', 'SVMRegressor', 'Scaler',
                          'TreeEnsembleClassifier', 'TreeEnsembleRegressor', 'ZipMap', 'NonMaxSuppression', 'TopK',
-                         'RoiAlign', 'Resize', 'Range', 'CumSum', 'Min', 'Max', 'Upsample', 'InstanceNormalization']
+                         'RoiAlign', 'Resize', 'Range', 'CumSum', 'Min', 'Max', 'Upsample']
 
 
 def convert_float_to_float16(model, min_positive_val=1e-7, max_finite_val=1e4,