diff --git a/med2image/med2image.py b/med2image/med2image.py
index 9c3474d..c67c244 100755
--- a/med2image/med2image.py
+++ b/med2image/med2image.py
@@ -672,7 +672,7 @@ def toc(self):
     def __init__(self, **kwargs):
         med2image.__init__(self, **kwargs)
         nimg = nib.load(self.str_inputFile)
-        data = nimg.get_data()
+        data = nimg.get_fdata()
         if data.ndim == 4:
             self._Vnp_4DVol     = data
             self._b_4D          = True