diff --git a/.gitignore b/.gitignore
index bb40183..8e80ca5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,8 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
 # Distribution / packaging
 .Python
 build/
diff --git a/notify_events/__init__.py b/notify_events/__init__.py
index 9bb1905..3c9938d 100644
--- a/notify_events/__init__.py
+++ b/notify_events/__init__.py
@@ -1,3 +1,3 @@
 from .message import Message
 
-__version__ = "1.1.2"
\ No newline at end of file
+__version__ = "1.1.3"
\ No newline at end of file
diff --git a/notify_events/message.py b/notify_events/message.py
index 0df4af4..356edbd 100644
--- a/notify_events/message.py
+++ b/notify_events/message.py
@@ -135,8 +135,9 @@ def send(self, channel_token: str):
             data['actions[' + str(idx) + '][callback_method]'] = action['callback_method']
             data['actions[' + str(idx) + '][callback_content]'] = action['callback_content']
 
-            for key, value in action['callback_headers'].items():
-                data['actions[' + str(idx) + '][callback_headers][' + urllib.parse.quote_plus(key) + ']'] = value
+            if isinstance(action['callback_headers'], dict):
+                for key, value in action['callback_headers'].items():
+                    data['actions[' + str(idx) + '][callback_headers][' + urllib.parse.quote_plus(key) + ']'] = value
 
         url = self._base_url % channel_token
 
diff --git a/setup.py b/setup.py
index 8e8b96e..14310f9 100644
--- a/setup.py
+++ b/setup.py
@@ -10,7 +10,7 @@
 # This call to setup() does all the work
 setup(
     name="notify_events",
-    version="1.1.2",
+    version="1.1.3",
     description="Extension to integrate your project with Notify.Events service.",
     long_description=README,
     long_description_content_type="text/markdown",
diff --git a/my.py b/test.py
similarity index 100%
rename from my.py
rename to test.py