diff --git a/PYTHON/lichess_bot/main.py b/PYTHON/lichess_bot/main.py
index 3904aae..87bbb70 100644
--- a/PYTHON/lichess_bot/main.py
+++ b/PYTHON/lichess_bot/main.py
@@ -97,8 +97,8 @@ def run_bot(log_level: str = "INFO", decline_correspondence: bool = False) -> No
                                 "createdAtDate"
                             )
                             if created_ms:
-                                game_date_iso = datetime.datetime.utcfromtimestamp(
-                                    int(created_ms) / 1000
+                                game_date_iso = datetime.datetime.fromtimestamp(
+                                    int(created_ms) / 1000, tz=datetime.timezone.utc
                                 ).strftime("%Y.%m.%d")
                         except Exception:
                             pass
diff --git a/pyproject.toml b/pyproject.toml
index f97e575..400aeb2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -66,7 +66,6 @@ ignore = [
     "S110",    # try-except-pass - common pattern in scripts
     "S112",    # try-except-continue - acceptable pattern
     "DTZ005",  # datetime.now without tz - acceptable for local scripts
-    "DTZ004",  # datetime.utcfromtimestamp - acceptable
     "PERF401", # manual-list-comprehension - style preference
     "RUF005",  # collection-literal-concatenation - style preference
     "SIM102",  # collapsible-if - style preference