diff --git a/OnnxBridge/utils/optimizations.py b/OnnxBridge/utils/optimizations.py
index 39d761b4..b24f88f7 100644
--- a/OnnxBridge/utils/optimizations.py
+++ b/OnnxBridge/utils/optimizations.py
@@ -26,7 +26,17 @@ def numpy_float_array_to_float_val_str_nchw(input_array):
 
 def numpy_float_array_to_float_val_str_nhwc(input_array):
     chunk = []
-    if len(input_array.shape) == 4:
+    if len(input_array.shape) == 5:
+        co, ci, d, h, w = input_array.shape
+        arr = np.zeros([co, d, h, w, ci])
+        for i in range(co):
+            for j in range(ci):
+                for k in range(d):
+                    for l in range(h):
+                        for m in range(w):
+                            arr[i][k][l][m][j] = input_array[i][j][k][l][m]
+        input_array = arr
+    elif len(input_array.shape) == 4:
         co, ci, h, w = input_array.shape
         arr = np.zeros([co, h, w, ci])
         for i in range(co):