diff --git a/connector.py b/connector.py
index c9cdc10..a84cccc 100644
--- a/connector.py
+++ b/connector.py
@@ -51,7 +51,7 @@ def __init__(self, data):
         self.y_std = np.std(data[:, 1], axis=0)
 
         ratio = 4.0/3.0     # (Number of SOM unit) / (Number of points)
-        self.w = np.zeros(int(data.shape[0]*ratio), dtype=np.complex)
+        self.w = np.zeros(int(data.shape[0]*ratio), dtype=np.cdouble)
 
 
     @property
diff --git a/tuner.py b/tuner.py
index 9c0e560..5a71b0d 100644
--- a/tuner.py
+++ b/tuner.py
@@ -30,7 +30,7 @@ def roll_to_max_distance(self, order):
 
 
     def permute(self, index, order):
-        tests = np.empty((self.size, self.size), dtype=np.int)
+        tests = np.empty((self.size, self.size), dtype=np.int_)
         num = order[index]
         base = np.delete(order, index)