diff --git a/dockerfile/ubuntu/Dockerfile b/dockerfile/ubuntu/Dockerfile
index 3f8ae55..7ccc803 100644
--- a/dockerfile/ubuntu/Dockerfile
+++ b/dockerfile/ubuntu/Dockerfile
@@ -2,8 +2,9 @@
 
 FROM ubuntu:22.04
 
-RUN apt-get update && \
-  apt-get install -y nano mc micro rsync ncdu git curl
+RUN apt-get update \
+  && apt-get install -y nano mc micro rsync ncdu git curl \
+  && rm -rf /var/lib/apt/lists/*
 COPY ./bin/ /usr/local/bin
 
 ENTRYPOINT ["sleep", "infinity"]