diff --git a/SDP/SDP/SDP.py b/SDP/SDP/SDP.py
index f6f62f2a74a0f543dc8c7e39fa12e74c9ec3b7a5..3c5c7e209108fc1cdda6618b4efc3c9e77be1cfc 100644
--- a/SDP/SDP/SDP.py
+++ b/SDP/SDP/SDP.py
@@ -36,7 +36,7 @@ class SDP(Device):
 
     - Device Property
         OPC_Server_Name
-            - Type:numpy.str_
+            - Type:numpy.str
         OPC_Server_Port
             - Type:'DevULong'
         OPC_Time_Out
@@ -71,7 +71,7 @@ class SDP(Device):
     # -----------------
 
     OPC_Server_Name = device_property(
-        dtype=numpy.str_,
+        dtype=numpy.str,
         mandatory=True
     )
 
@@ -116,7 +116,7 @@ class SDP(Device):
     )
 
     fpga_version_R = attribute(
-        dtype = (numpy.str_,),
+        dtype = (numpy.str,),
         max_dim_x = 16,
     )
 
@@ -132,19 +132,19 @@ class SDP(Device):
     )
 
     sdp_info_R = attribute(
-        dtype = (numpy.str_,),
+        dtype = (numpy.str,),
     )
 
     sdp_tod_R = attribute(
-        dtype = (numpy.str_,),
+        dtype = (numpy.str,),
     )
 
     translator_network_R = attribute(
-        dtype = (numpy.str_,),
+        dtype = (numpy.str,),
     )
 
     translator_timing_R = attribute(
-        dtype = (numpy.str_,),
+        dtype = (numpy.str,),
     )