diff --git a/.allowed.example b/.allowed.example
new file mode 100644
index 0000000..5fb1a2d
--- /dev/null
+++ b/.allowed.example
@@ -0,0 +1 @@
+{"ALLOWED_IPS": ["127.0.0.1"]}
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 1d17dae..895cc8d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 .venv
+.allowed
diff --git a/trio_http_proxy.py b/trio_http_proxy.py
index 732f6c2..816636a 100755
--- a/trio_http_proxy.py
+++ b/trio_http_proxy.py
@@ -15,12 +15,15 @@ from textwrap import indent
 from traceback import format_exc
 import h11
 import trio
+import json
 
 DEFAULT_PORT = 8080
 PORT = int(getenv('PORT', DEFAULT_PORT))
 
 # List of allowed IP addresses
-ALLOWED_IPS = ['127.0.0.1', '82.66.241.83', '136.243.50.102', '178.254.72.180'] + [f'192.168.1.{i}' for i in range(1, 254)]
+with open('.allowed') as f:
+    ALLOWED_IPS = json.load(f)['ALLOWED_IPS']
+ALLOWED_IPS = ALLOWED_IPS + [f'192.168.1.{i}' for i in range(1, 254)]
 
 prn = partial(print, end='')
 indented = partial(indent, prefix='  ')