diff --git a/src/eircode/address.py b/src/eircode/address.py
index f424246..e19ac8f 100644
--- a/src/eircode/address.py
+++ b/src/eircode/address.py
@@ -6,7 +6,7 @@
 
 from eircode.logging import logger
 from eircode.eircode import Eircode
-from eircode.constants import IDENTITY_URL_PATH, EIRCODE_FINDER_URL_PATH
+from eircode.constants import IDENTITY_URL_PATH, EIRCODE_FINDER_URL_PATH, HEADERS
 from eircode.proxy import proxy
 
 
@@ -96,7 +96,8 @@ def set(self, throw_ex=True, reverse=False):
                     return
 
         else:
-            identity_response = requests.get(IDENTITY_URL_PATH).json()
+
+            identity_response = requests.get(IDENTITY_URL_PATH, headers=HEADERS).json()
             params = {
                 "key": identity_response["key"],
                 "address": self.input_address,
@@ -106,7 +107,7 @@ def set(self, throw_ex=True, reverse=False):
             }
 
             try:
-                finder_response = requests.get(EIRCODE_FINDER_URL_PATH, params=params)
+                finder_response = requests.get(EIRCODE_FINDER_URL_PATH, params=params, headers=HEADERS)
             except Exception as ex:
                 if throw_ex:
                     raise ex
@@ -196,7 +197,7 @@ def eircode_data(self):
         if self.proxy:
             data = proxy.get(self.link).json()
         else:
-            data = requests.get(self.link).json()
+            data = requests.get(self.link, headers=HEADERS).json()
 
         if data.get("error", {}).get("code", None) == 403:
             raise ValueError(data["error"]["text"])
diff --git a/src/eircode/constants.py b/src/eircode/constants.py
index 879af34..0b21cb9 100644
--- a/src/eircode/constants.py
+++ b/src/eircode/constants.py
@@ -8,7 +8,7 @@
 
 IDENTITY_URL_PATH = "https://api-finder.eircode.ie/Latest/findergetidentity"
 EIRCODE_FINDER_URL_PATH = "https://api-finder.eircode.ie/Latest/finderfindaddress"
-
+HEADERS = {'User-Agent': 'Mozilla/5.0'}
 ROUTING_KEYS_TOWNS_MAP = {
     "A41": ["Ballyboughal"],
     "A42": ["Garristown"],
diff --git a/src/eircode/proxy.py b/src/eircode/proxy.py
index a9bfd56..6c463e8 100644
--- a/src/eircode/proxy.py
+++ b/src/eircode/proxy.py
@@ -5,6 +5,7 @@
 import requests
 from requests_ip_rotator import ApiGateway
 
+from eircode.constants import HEADERS
 from eircode.logging import logger
 
 
@@ -30,6 +31,7 @@ def setup(self, force=False):
 
         self.session = requests.Session()
         self.session.mount(self.site, self.gateway)
+        self.session.headers = HEADERS
 
         self._is_setup = True
 
diff --git a/test/test_proxy.py b/test/test_proxy.py
index 718601f..cd8de13 100644
--- a/test/test_proxy.py
+++ b/test/test_proxy.py
@@ -1,5 +1,6 @@
 from unittest import TestCase, skip
 
+from eircode.constants import HEADERS
 from eircode.proxy import Proxy