diff --git a/Dockerfile b/Dockerfile
index 5638395..8d853b5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,8 @@ USER root
 WORKDIR /var/www
 
 # MySQL 5.7 (Homefully not version 8...)
-RUN apt-get update && apt-get install mysql-server nginx -y
+RUN apt-get update && apt-get install mysql-server nginx -y \
+    && rm -rf /var/lib/apt/lists/*
 
 COPY /entrypoint.sh /