diff --git a/Dockerfile b/Dockerfile
index 69fb4a2..a98a716 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     # Process supervisor
     supervisor \
     # Others
-    net-tools curl less pico \
+    net-tools curl less nano \
     # Clean up
     && rm -rf /var/lib/apt/lists/*