diff --git a/README.md b/README.md
index 86e2835..2890aa5 100644
--- a/README.md
+++ b/README.md
@@ -79,6 +79,9 @@ email = OneSecMail()
 
 # request_email(email=email.address)
 
+# Speed up inbox refresh rate
+OneSecMail.inbox_update_interval = 0.1  # every 100ms
+
 # Accept only emails with a specific subject, raise error after 60 seconds
 msg = email.wait_for_message(timeout=60, filter=lambda m: m.subject == 'Hello World!')
 print(msg.body)
diff --git a/setup.py b/setup.py
index 3ca0457..0b6ed11 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@ def read(path: str) -> str:
 
 setup(
     name='tempmail-python',
-    version='2.3.0',
+    version='2.3.1',
     description='Python library for generating and managing temporary email addresses.',
     long_description=read('README.md'),
     long_description_content_type='text/markdown',
diff --git a/tempmail/providers.py b/tempmail/providers.py
index 7ef3388..b7efbb6 100644
--- a/tempmail/providers.py
+++ b/tempmail/providers.py
@@ -13,6 +13,9 @@
 class OneSecMail:
     """1secmail.com API wrapper"""
 
+    inbox_update_interval = 0.5
+    """How often to update the inbox in seconds"""
+
     def __init__(self, address: str | None = None, username: str | None = None, domain: str | None = None) -> None:
         """Create a new 1secmail.com email address
 
@@ -67,7 +70,7 @@ def wait_for_message(self, timeout: int | None = 60, filter: callable = lambda _
             for msg_info in inbox:
                 if filter(msg_info.message):
                     return msg_info.message
-            time.sleep(1)
+            time.sleep(OneSecMail.inbox_update_interval)
 
         raise TimeoutError('Timed out waiting for message')