diff --git a/creatio_api_py/api.py b/creatio_api_py/api.py
index 1a2f292..c47634a 100644
--- a/creatio_api_py/api.py
+++ b/creatio_api_py/api.py
@@ -148,10 +148,7 @@ def _store_session_cookie(self, username: str) -> None:
 
     def _build_headers(self, endpoint: str, method: str) -> dict[str, str]:
         """Construct request headers."""
-        headers: dict[str, str] = {
-            "Content-Type": "application/json",
-            "ForceUseSession": "true",
-        }
+        headers: dict[str, str] = {"ForceUseSession": "true"}
 
         if "$metadata" not in endpoint:
             headers["Accept"] = "application/json; odata=verbose"