diff --git a/src/square/core/api_error.py b/src/square/core/api_error.py
index 59664655..426f851e 100644
--- a/src/square/core/api_error.py
+++ b/src/square/core/api_error.py
@@ -17,8 +17,15 @@ class ApiError(Exception):
     status_code: Optional[int]
     body: Any
     errors: List[Error]
-
-    def __init__(self, *, status_code: Optional[int] = None, body: Any = None):
+    headers: Optional[Dict[str, str]]
+
+    def __init__(
+        self,
+        *,
+        headers: Optional[Dict[str, str]] = None,
+        status_code: Optional[int] = None,
+        body: Any = None,
+    ) -> None:
         """
         Initialize an ApiError.
 
@@ -30,6 +37,7 @@ def __init__(self, *, status_code: Optional[int] = None, body: Any = None):
         self.status_code = status_code
         self.body = body
         self.errors = self._parse_errors(body)
+        self.headers = headers
 
         super().__init__(self._build_message(message, status_code, body))
 
@@ -120,4 +128,4 @@ def _parse_error(self, data: Optional[Dict[str, Any]] = None) -> Error:
         )
 
     def __str__(self) -> str:
-        return f"status_code: {self.status_code}, body: {self.body}"
+        return f"headers: {self.headers}, status_code: {self.status_code}, body: {self.body}"