diff --git a/utils/bigclown/bigclown-control-tool/Makefile b/utils/bigclown/bigclown-control-tool/Makefile
index 6e8db708b0..84958d4a87 100644
--- a/utils/bigclown/bigclown-control-tool/Makefile
+++ b/utils/bigclown/bigclown-control-tool/Makefile
@@ -6,7 +6,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=bigclown-control-tool
 PKG_VERSION:=0.2.0
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PYPI_NAME:=bch
 PKG_HASH:=4cd73b92757fce7275a4744baed411c867af2e671c521b90d6690b2320851d58
@@ -30,8 +30,7 @@ define Package/bigclown-control-tool
     +python3-click-log \
     +python3-paho-mqtt \
     +python3-pyserial \
-    +python3-yaml \
-    +python3-simplejson
+    +python3-yaml
 endef
 
 $(eval $(call Py3Package,bigclown-control-tool))
diff --git a/utils/bigclown/bigclown-control-tool/patches/0001-bch-use-Python-s-built-in-json-library.patch b/utils/bigclown/bigclown-control-tool/patches/0001-bch-use-Python-s-built-in-json-library.patch
new file mode 100644
index 0000000000..6f484ca49d
--- /dev/null
+++ b/utils/bigclown/bigclown-control-tool/patches/0001-bch-use-Python-s-built-in-json-library.patch
@@ -0,0 +1,40 @@
+--- a/bch.egg-info/requires.txt
++++ b/bch.egg-info/requires.txt
+@@ -3,4 +3,3 @@ click-log>=0.2.1
+ paho-mqtt>=1.0
+ pyserial>=3.0
+ PyYAML>=3.11
+-simplejson>=3.6.0
+--- a/bch/cli.py
++++ b/bch/cli.py
+@@ -6,7 +6,7 @@ import sys
+ import logging
+ import click
+ import click_log
+-import simplejson as json
++import json
+ from datetime import datetime
+ import paho.mqtt.client
+ from paho.mqtt.client import topic_matches_sub
+--- a/bch/mqtt_client.py
++++ b/bch/mqtt_client.py
+@@ -1,7 +1,7 @@
+ import paho.mqtt.client
+ from paho.mqtt.client import topic_matches_sub
+ import logging
+-import simplejson as json
++import json
+ import time
+ 
+ 
+--- a/setup.py
++++ b/setup.py
+@@ -3,7 +3,7 @@
+ 
+ from setuptools import setup, find_packages
+ 
+-requirements = ['Click>=6.0', 'click-log>=0.2.1', 'paho-mqtt>=1.0', 'pyserial>=3.0', 'PyYAML>=3.11', 'simplejson>=3.6.0']
++requirements = ['Click>=6.0', 'click-log>=0.2.1', 'paho-mqtt>=1.0', 'pyserial>=3.0', 'PyYAML>=3.11']
+ 
+ setup(
+     name='bch',