diff --git a/Wappalyzer.py b/Wappalyzer.py
index 80526b8..f0e70a0 100644
--- a/Wappalyzer.py
+++ b/Wappalyzer.py
@@ -65,7 +65,7 @@ def _parse_html(self):
         }
 
     @classmethod
-    def new_from_url(cls, url, verify=True):
+    def new_from_url(cls, url, verify=True, custom_headers=None):
         """
         Constructs a new WebPage object for the URL,
         using the `requests` module to fetch the HTML.
@@ -75,8 +75,11 @@ def new_from_url(cls, url, verify=True):
 
         url : str
         verify: bool
+        custom_headers: dict
+            Dictionary that allow send custom headers on request
         """
-        response = requests.get(url, verify=verify, timeout=2.5)
+        response = requests.get(
+            url, headers=custom_headers, verify=verify, timeout=2.5)
         return cls.new_from_response(response)
 
     @classmethod
diff --git a/bin/update_apps.py b/bin/update_apps.py
new file mode 100644
index 0000000..c7f0a3a
--- /dev/null
+++ b/bin/update_apps.py
@@ -0,0 +1,11 @@
+import requests
+
+print('Beginning file apps.json download')
+
+url = 'https://raw.githubusercontent.com/AliasIO/Wappalyzer/master/src/apps.json'
+r = requests.get(url)
+
+with open('../data/apps.json', 'wb') as f:
+    f.write(r.content)
+
+print('File apps.json updated with success!')
\ No newline at end of file