diff --git a/examples/time_source.py b/examples/time_source.py
index 03b8e35..f23aa37 100644
--- a/examples/time_source.py
+++ b/examples/time_source.py
@@ -4,8 +4,8 @@
 
 import time
 import board
-import rtc
 import busio
+import rtc
 import adafruit_gps
 
 uart = busio.UART(board.TX, board.RX, baudrate=9600, timeout=3000)
diff --git a/requirements.txt b/requirements.txt
index f6c1a1f..c61620e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,2 @@
+Adafruit-Blinka
 pyserial