diff --git a/Dockerfile b/Dockerfile
index c86b479..9bad3d5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,9 @@
 FROM monica:apache
 
+RUN apt-get update && \
+  apt-get full-upgrade -y && \
+  rm -rf /var/lib/apt/lists/*
+
 # Use the default production configuration
 RUN mv "$PHP_INI_DIR/php.ini-production" "$PHP_INI_DIR/php.ini"