diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index c05ae44..2b116c4 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -42,7 +42,7 @@ jobs:
               echo ""
               echo "LLM_PROVIDER=openai"
               echo "LLM_BASE_URL=https://api.deepseek.com/v1"
-              echo "LLM_CHAT_MODEL=deepseek-chat"
+              echo "LLM_CHAT_MODEL=deepseek-v4-flash"
               echo "LLM_TIMEOUT_SECONDS=30"
               echo "LLM_RETRY_COUNT=2"
               echo "LLM_RETRY_BASE_MS=500"