diff --git a/adafruit_tcs34725.py b/adafruit_tcs34725.py
index a4eb251..81d23d5 100644
--- a/adafruit_tcs34725.py
+++ b/adafruit_tcs34725.py
@@ -340,16 +340,16 @@ def _read_u8(self, address):
         # Read an 8-bit unsigned value from the specified 8-bit address.
         with self._device as i2c:
             self._BUFFER[0] = (address | _COMMAND_BIT) & 0xFF
-            i2c.write(self._BUFFER, end=1, stop=False)
-            i2c.readinto(self._BUFFER, end=1)
+            i2c.write_then_readinto(self._BUFFER, self._BUFFER,
+                                    out_end=1, in_end=1)
         return self._BUFFER[0]
 
     def _read_u16(self, address):
         # Read a 16-bit unsigned value from the specified 8-bit address.
         with self._device as i2c:
             self._BUFFER[0] = (address | _COMMAND_BIT) & 0xFF
-            i2c.write(self._BUFFER, end=1, stop=False)
-            i2c.readinto(self._BUFFER, end=2)
+            i2c.write_then_readinto(self._BUFFER, self._BUFFER,
+                                    out_end=1, in_end=2)
         return (self._BUFFER[1] << 8) | self._BUFFER[0]
 
     def _write_u8(self, address, val):