diff --git a/hardware/relay/pwm-dimmer_relay.py b/hardware/relay/pwm-dimmer_relay.py
index 6ac7d9c81..844758eda 100644
--- a/hardware/relay/pwm-dimmer_relay.py
+++ b/hardware/relay/pwm-dimmer_relay.py
@@ -86,7 +86,7 @@ def _set_hardware_value(self, state):
             self.device.hardware_PWM(
                 terrariumUtils.to_BCM_port_number(self.address),
                 self._DIMMER_FREQ,
-                int(dim_value) * self._DIMMER_DUTY_CYCLE,
+                max(0, min(1000000, int(dim_value) * self._DIMMER_DUTY_CYCLE)),
             )
             self._dimmer_state = state
 
diff --git a/requirements.txt b/requirements.txt
index 3cafa7941..1853f108a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 pip==23.1.2
-setuptools==67.8.0
+setuptools==68.0.0
 wheel==0.40.0
 
 # Database
@@ -43,7 +43,7 @@ PyMLX90614==0.0.4
 pyownet==0.10.0.post1
 veml6075==0.0.2
 lib8relay==1.0.3
-pylibftdi==0.20.0
+pylibftdi==0.21.0
 asyncio==3.4.3
 python-kasa==0.5.1
 meross-iot==0.4.5.9