diff --git a/requirements_dev.txt b/requirements_dev.txt
index c401d5a2..b9c79b61 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -7,7 +7,7 @@ colorlog==6.10.1
 debugpy==1.8.21
 ha-silabs-firmware-client==0.3.0
 homeassistant>=2026.7.1
-matter-python-client==1.1.7
+matter-python-client==1.2.1
 pyserial==3.5
 pyudev==0.24.4
 universal-silabs-flasher==1.1.0