diff --git a/pyproject.toml b/pyproject.toml
index 10a60135..eeabc12c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -226,6 +226,8 @@ extra_fields = "allow"
 allow_population_by_field_name = true
 aliases = "datamodel_codegen_aliases.json"
 formatters = ["ruff-check", "ruff-format"]
+custom_file_header = "# generated by datamodel-codegen"
+disable_timestamp = true
 
 [tool.uv]
 # Minimal defense against supply-chain atatcks.
diff --git a/src/apify_client/_models.py b/src/apify_client/_models.py
index 79fbb3ac..fd618ad3 100644
--- a/src/apify_client/_models.py
+++ b/src/apify_client/_models.py
@@ -1,6 +1,4 @@
-# generated by datamodel-codegen:
-#   filename:  openapi.json
-#   timestamp: 2026-04-13T07:02:33+00:00
+# generated by datamodel-codegen
 
 from __future__ import annotations