diff --git a/Dockerfile b/Dockerfile
index 8219691..e33d648 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -105,6 +105,7 @@ RUN \
     > /run/systemd/container && \
   echo "**** install apt-utils and locales ****" && \
   apt-get update && \
+  apt-get upgrade -y && \
   apt-get install -y \
     apt-utils \
     locales && \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index c788e0d..a38ee04 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -105,6 +105,7 @@ RUN \
     > /run/systemd/container && \
   echo "**** install apt-utils and locales ****" && \
   apt-get update && \
+  apt-get upgrade -y && \
   apt-get install -y \
     apt-utils \
     locales && \