diff --git a/espilon_bot/components/core/gprs.c b/espilon_bot/components/core/gprs.c
index a2aeba1..be36983 100644
--- a/espilon_bot/components/core/gprs.c
+++ b/espilon_bot/components/core/gprs.c
@@ -13,7 +13,6 @@
 
 #include "utils.h"      /* CONFIG_*, base64, crypto */
 #include "command.h"    /* process_command */
-#include "crypto.h"     /* c2_decode_and_exec */
 
 #ifdef CONFIG_NETWORK_GPRS
 
diff --git a/tools/c2/README.md b/tools/c2/README.md
index 2b0a76b..aee7de0 100644
--- a/tools/c2/README.md
+++ b/tools/c2/README.md
@@ -6,6 +6,8 @@
 
 ```md
 
+- Add requierements.txt
+
 - Implementer la coexistence entre multiflasher fichier (valid-id.txt - separator "\n" - C2 will only authorize device who are register in 'valid-id.txt' or add c2 command style 'authorizeId <id>' and he will be add into id list & valid-id.txt file)
 
 
diff --git a/tools/c2/c3po.py b/tools/c2/c3po.py
index 6d2b1c1..1fe07a4 100644
--- a/tools/c2/c3po.py
+++ b/tools/c2/c3po.py
@@ -1,10 +1,3 @@
-#!/usr/bin/env python3
-import socket
-import threading
-import re
-import sys
-import time # Added missing import
-
 #!/usr/bin/env python3
 import socket
 import threading
diff --git a/tools/c2/requirements.txt b/tools/c2/requirements.txt
new file mode 100644
index 0000000..2844bec
--- /dev/null
+++ b/tools/c2/requirements.txt
@@ -0,0 +1,2 @@
+pycryptodome>=3.15.0
+protobuf>=4.21.0