diff --git a/docker-compose.yml b/docker-compose.yml
index dbe60a0..f7b0916 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -64,7 +64,7 @@ services:
       OLLAMA_BASE_URL: http://ollama:11434
       OLLAMA_CHAT_MODEL: ${OLLAMA_CHAT_MODEL:-qwen2.5:3b}
       OLLAMA_EMBED_MODEL: ${OLLAMA_EMBED_MODEL:-nomic-embed-text}
-      WHISPER_MODEL: ${WHISPER_MODEL:-small}
+      WHISPER_MODEL: ${WHISPER_MODEL:-medium}
       WHISPER_DEVICE: ${WHISPER_DEVICE:-cuda}
       WHISPER_COMPUTE_TYPE: ${WHISPER_COMPUTE_TYPE:-float16}
       # Optional single-language lock for replies (empty = user's own language).