diff --git a/hwci/requirements-frozen.txt b/hwci/requirements-frozen.txt
index 7c15043..5dc95c5 100644
--- a/hwci/requirements-frozen.txt
+++ b/hwci/requirements-frozen.txt
@@ -10,6 +10,7 @@ pycryptodome==3.21.0
 pyserial==3.5
 PyYAML==6.0.2
 questionary==2.0.1
+RPi.GPIO==0.7.1
 siphash==0.0.1
 tockloader==1.13.0
 toml==0.10.2
diff --git a/hwci/requirements.txt b/hwci/requirements.txt
index 837a8aa..3cc66f0 100644
--- a/hwci/requirements.txt
+++ b/hwci/requirements.txt
@@ -6,4 +6,5 @@ pexpect
 pyserial
 tockloader
 gpiozero
+RPi.GPIO
 pyyaml