diff --git a/Dockerfile b/Dockerfile
index 4415b70..8664d9d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,6 +7,7 @@ COPY init/entrypoint.sh /usr/local/bin
 
 RUN chmod +x /usr/local/bin/entrypoint.sh && \
     apt-get update && \
+    apt-get upgrade -y && \
     apt-get install -y --no-install-recommends \
       libterm-readline-gnu-perl \
       software-properties-common && \