diff --git a/server/controllers/api/show/microphones.py b/server/controllers/api/show/microphones.py
index ad94a8b5..5b07429e 100644
--- a/server/controllers/api/show/microphones.py
+++ b/server/controllers/api/show/microphones.py
@@ -498,9 +498,11 @@ async def post(self):
                     ]
                     # Sort by scene position (chronological order)
                     character_scenes.sort(
-                        key=lambda x: scene_metadata[x[0]].position
-                        if x[0] in scene_metadata
-                        else 0
+                        key=lambda x: (
+                            scene_metadata[x[0]].position
+                            if x[0] in scene_metadata
+                            else 0
+                        )
                     )
 
                     # Assign mic for each scene
diff --git a/server/schemas/schemas.py b/server/schemas/schemas.py
index cee93003..9feacdb7 100644
--- a/server/schemas/schemas.py
+++ b/server/schemas/schemas.py
@@ -227,7 +227,7 @@ class Meta:
         include_fk = True
 
     line_parts = Nested(
-        lambda: ScriptLinePartSchema(),
+        lambda: ScriptLinePartSchema(),  # noqa: PLW0108 — forward reference required
         many=True,
     )
 
diff --git a/server/test_requirements.txt b/server/test_requirements.txt
index 0f664215..afa631cb 100644
--- a/server/test_requirements.txt
+++ b/server/test_requirements.txt
@@ -1,3 +1,3 @@
 pytest<9.1
 pytest-asyncio>=1.3.0
-ruff==0.14.14
\ No newline at end of file
+ruff==0.15.0
\ No newline at end of file
diff --git a/server/utils/version_checker.py b/server/utils/version_checker.py
index f5488195..cd330857 100644
--- a/server/utils/version_checker.py
+++ b/server/utils/version_checker.py
@@ -198,8 +198,8 @@ def _is_newer_version(self, latest: str, current: str) -> bool:
         """
         try:
             # Strip pre-release suffixes (everything after -)
-            latest_clean = latest.split("-")[0]
-            current_clean = current.split("-")[0]
+            latest_clean = latest.split("-", maxsplit=1)[0]
+            current_clean = current.split("-", maxsplit=1)[0]
 
             latest_parts = [int(x) for x in latest_clean.split(".")]
             current_parts = [int(x) for x in current_clean.split(".")]