diff --git a/src/edge_tts/communicate.py b/src/edge_tts/communicate.py
index b345d66..6d28f52 100644
--- a/src/edge_tts/communicate.py
+++ b/src/edge_tts/communicate.py
@@ -27,7 +27,7 @@
 import aiohttp
 import certifi
 
-from .constants import WSS_URL
+from .constants import WSS_HEADERS, WSS_URL
 from .exceptions import (
     NoAudioReceived,
     UnexpectedResponse,
@@ -369,15 +369,7 @@ async def send_ssml_request() -> None:
             f"{WSS_URL}&ConnectionId={connect_id()}",
             compress=15,
             proxy=self.proxy,
-            headers={
-                "Pragma": "no-cache",
-                "Cache-Control": "no-cache",
-                "Origin": "chrome-extension://jdiccldimpdaibmpdkjnbmckianbfold",
-                "Accept-Encoding": "gzip, deflate, br",
-                "Accept-Language": "en-US,en;q=0.9",
-                "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36"
-                " (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36 Edg/129.0.0.0",
-            },
+            headers=WSS_HEADERS,
             ssl=ssl_ctx,
         ) as websocket:
             # Send the request to the service.
diff --git a/src/edge_tts/constants.py b/src/edge_tts/constants.py
index ab62b28..60f8919 100644
--- a/src/edge_tts/constants.py
+++ b/src/edge_tts/constants.py
@@ -7,3 +7,29 @@
 
 WSS_URL = f"wss://{BASE_URL}/edge/v1?TrustedClientToken={TRUSTED_CLIENT_TOKEN}"
 VOICE_LIST = f"https://{BASE_URL}/voices/list?trustedclienttoken={TRUSTED_CLIENT_TOKEN}"
+
+CHROMIUM_MAJOR_VERSION = "129"
+BASE_HEADERS = {
+    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36"
+    f" (KHTML, like Gecko) Chrome/${CHROMIUM_MAJOR_VERSION}.0.0.0 Safari/537.36"
+    f" Edg/${CHROMIUM_MAJOR_VERSION}.0.0.0",
+    "Accept-Encoding": "gzip, deflate, br",
+    "Accept-Language": "en-US,en;q=0.9",
+}
+WSS_HEADERS = {
+    "Pragma": "no-cache",
+    "Cache-Control": "no-cache",
+    "Origin": "chrome-extension://jdiccldimpdaibmpdkjnbmckianbfold",
+}
+WSS_HEADERS.update(BASE_HEADERS)
+VOICE_HEADERS = {
+    "Authority": "speech.platform.bing.com",
+    "Sec-CH-UA": f'" Not;A Brand";v="99", "Microsoft Edge";v="{CHROMIUM_MAJOR_VERSION}",'
+    f' "Chromium";v="{CHROMIUM_MAJOR_VERSION}"',
+    "Sec-CH-UA-Mobile": "?0",
+    "Accept": "*/*",
+    "Sec-Fetch-Site": "none",
+    "Sec-Fetch-Mode": "cors",
+    "Sec-Fetch-Dest": "empty",
+}
+VOICE_HEADERS.update(BASE_HEADERS)
diff --git a/src/edge_tts/list_voices.py b/src/edge_tts/list_voices.py
index 9b703f8..a18859f 100644
--- a/src/edge_tts/list_voices.py
+++ b/src/edge_tts/list_voices.py
@@ -9,7 +9,7 @@
 import aiohttp
 import certifi
 
-from .constants import VOICE_LIST
+from .constants import VOICE_HEADERS, VOICE_LIST
 
 
 async def list_voices(*, proxy: Optional[str] = None) -> Any:
@@ -26,19 +26,7 @@ async def list_voices(*, proxy: Optional[str] = None) -> Any:
     async with aiohttp.ClientSession(trust_env=True) as session:
         async with session.get(
             VOICE_LIST,
-            headers={
-                "Authority": "speech.platform.bing.com",
-                "Sec-CH-UA": '" Not;A Brand";v="99", "Microsoft Edge";v="91", "Chromium";v="91"',
-                "Sec-CH-UA-Mobile": "?0",
-                "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
-                "(KHTML, like Gecko) Chrome/91.0.4472.77 Safari/537.36 Edg/91.0.864.41",
-                "Accept": "*/*",
-                "Sec-Fetch-Site": "none",
-                "Sec-Fetch-Mode": "cors",
-                "Sec-Fetch-Dest": "empty",
-                "Accept-Encoding": "gzip, deflate, br",
-                "Accept-Language": "en-US,en;q=0.9",
-            },
+            headers=VOICE_HEADERS,
             proxy=proxy,
             ssl=ssl_ctx,
         ) as url: