diff --git a/README.md b/README.md
index cd54bcf0..85a7c53e 100644
--- a/README.md
+++ b/README.md
@@ -299,7 +299,7 @@ Video speed is adjusted approximately 50 times slower than actual speed.
   docker run --rm -it \
   -v `pwd`:/workdir \
   -w /workdir \
-  ghcr.io/pinto0309/onnx2tf:1.25.13
+  ghcr.io/pinto0309/onnx2tf:1.25.14
 
   or
 
@@ -307,7 +307,7 @@ Video speed is adjusted approximately 50 times slower than actual speed.
   docker run --rm -it \
   -v `pwd`:/workdir \
   -w /workdir \
-  docker.io/pinto0309/onnx2tf:1.25.13
+  docker.io/pinto0309/onnx2tf:1.25.14
 
   or
 
diff --git a/onnx2tf/__init__.py b/onnx2tf/__init__.py
index b162b232..f6db3dee 100644
--- a/onnx2tf/__init__.py
+++ b/onnx2tf/__init__.py
@@ -1,3 +1,3 @@
 from onnx2tf.onnx2tf import convert, main
 
-__version__ = '1.25.13'
+__version__ = '1.25.14'
diff --git a/onnx2tf/ops/ArgMin.py b/onnx2tf/ops/ArgMin.py
index b5f27fbc..700e0d20 100644
--- a/onnx2tf/ops/ArgMin.py
+++ b/onnx2tf/ops/ArgMin.py
@@ -49,11 +49,15 @@ def make_node(
     shape = graph_node_output.shape
     dtype = graph_node_output.dtype
 
+    # Generation of TF OP
+    input_tensor = tf_layers_dict[graph_node_input.name]['tf_node'] \
+        if isinstance(graph_node_input, gs.Variable) else graph_node_input
+
     axis = graph_node.attrs.get('axis', 0)
     # NCHW->NHWC, NCDHW->NDHWC
     axis = convert_axis(
         axis=axis,
-        tensor_rank=len(graph_node_input.shape),
+        tensor_rank=len(graph_node_input.shape) if graph_node_input.shape is not None else len(input_tensor.shape),
         before_op_output_shape_trans=before_op_output_shape_trans,
     )
 
@@ -73,10 +77,6 @@ def make_node(
                 and 'nhwc' in tf_layers_dict[graph_node_input.name].keys() else False
     }
 
-    # Generation of TF OP
-    input_tensor = tf_layers_dict[graph_node_input.name]['tf_node'] \
-        if isinstance(graph_node_input, gs.Variable) else graph_node_input
-
     # Pre-process transpose
     input_tensor = pre_process_transpose(
         value_before_transpose=input_tensor,