diff --git a/requirements.txt b/requirements.txt
index 55261e6..f2e70fe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-adafruit-circuitpython-dht==4.0.3
+adafruit-circuitpython-dht==4.0.4
 paho-mqtt==1.6.1
 # pre-release to support raspberry pi 4
 # https://sourceforge.net/p/raspberry-gpio-python/tickets/190/