diff --git a/src/perun/get_episode.py b/src/perun/get_episode.py
index edcea96..ab5fa73 100644
--- a/src/perun/get_episode.py
+++ b/src/perun/get_episode.py
@@ -29,7 +29,7 @@ def get_audiobookshelf_data()->tuple[int | None, str | None]:
 
 	except requests.RequestException as e:
 		logger.warning(f"Failed to fetch Audiobookshelf data: {e}")
-		return None
+		return (None, None)
 	
 
 def download_episode():
diff --git a/src/perun/helper.py b/src/perun/helper.py
index 0eef539..9917f46 100644
--- a/src/perun/helper.py
+++ b/src/perun/helper.py
@@ -4,6 +4,6 @@ def return_string_as_html(input_text):
 	string_without_ads=""
 	for line in input_text.splitlines():
 		line = re.sub(r'(https?://[^\s]+)', r'<a href="\1">\1</a>', line)
-		if not "Sponsored" in line:
+		if "Sponsored" not in line:
 			string_without_ads+=line+"\n"
 	return("<p>"+string_without_ads.replace("\n\n", "</p>\n<p>").replace("\n", "<br>")+"</p>")
diff --git a/src/perun/youtube_handler.py b/src/perun/youtube_handler.py
index 8035559..770a15d 100644
--- a/src/perun/youtube_handler.py
+++ b/src/perun/youtube_handler.py
@@ -98,7 +98,7 @@ def return_download_options(information:dict,track:str)->dict:
 		}],
 		"postprocessor_args": [
 			"-metadata", f"title={information['title']}",
-			"-metadata", f"artist=Perun",
+			"-metadata", "artist=Perun",
 			"-metadata", f"track={track}",
 			"-metadata", f"date={information['date']}",
 			"-metadata", f"comment={information['description']}",
diff --git a/src/petetong/Dockerfile b/src/petetong/Dockerfile
index 0e0db4e..213fe1b 100644
--- a/src/petetong/Dockerfile
+++ b/src/petetong/Dockerfile
@@ -1,9 +1,10 @@
 FROM ubuntu:24.04
 
 RUN apt update  && \
-	apt install -y python3 ffmpeg software-properties-common curl keychain ca-certificates && \
+	apt install -y ca-certificates curl ffmpeg keychain python3 software-properties-common && \
 	add-apt-repository ppa:m-grant-prg/utils && \
-	apt update -y && apt install -y get-iplayer
+	apt update && apt install -y get-iplayer && \
+	rm -rf /var/lib/apt/lists/* /var/cache/apt/archives/*
 
 ADD https://astral.sh/uv/install.sh /uv-installer.sh
 RUN sh /uv-installer.sh && mv /root/.local/bin/uv /usr/local/bin/uv && rm /uv-installer.sh
diff --git a/src/petetong/download_episode.py b/src/petetong/download_episode.py
index 13b20dc..9686c3e 100644
--- a/src/petetong/download_episode.py
+++ b/src/petetong/download_episode.py
@@ -107,7 +107,7 @@ def convert_episode_to_mp3(episode_data: EpisodeData, file_name: str):
 	ffmpeg_command = [
 		"ffmpeg", "-i", file_name,
 		"-metadata", f"title={episode_data.title}",
-		"-metadata", f"artist=Pete Tong",
+		"-metadata", "artist=Pete Tong",
 		"-metadata", f"track={episode_data.track}",
 		"-metadata", f"date={episode_data.timestamp}",
 		"-metadata", f"comment={episode_data.description}",