diff --git a/ntopng/ntop/Dockerfile b/ntopng/ntop/Dockerfile
index 0241931..e986298 100644
--- a/ntopng/ntop/Dockerfile
+++ b/ntopng/ntop/Dockerfile
@@ -1,13 +1,24 @@
-FROM ubuntu:focal 
+# from: https://github.com/ntop/docker-ntop/blob/master/Dockerfile.ntopng-arm64
+FROM debian:bullseye-slim
 
-RUN apt-get update && apt-get -y upgrade \
-    && echo "8 48" | apt-get install -y software-properties-common wget curl \
-    && add-apt-repository universe \
-    && wget https://packages.ntop.org/apt-stable/20.04/all/apt-ntop-stable.deb \
-    && apt install -y ./apt-ntop-stable.deb \
-    && apt-get install -y ntopng \
-    && systemctl enable ntopng
+# Main dependencies and ntop.org apt package repo installation
+RUN apt-get update && \
+    apt-get -y -q install software-properties-common wget lsb-release gnupg libelf1 && \
+    wget -q http://packages.ntop.org/RaspberryPI/apt-ntop_1.0.190416-469_all.deb && \
+    apt-get -y -q install ./apt-ntop_1.0.190416-469_all.deb
 
-RUN mkdir /ntopngcustom \
-    && chmod 777 /ntopngcustom
+# ntopng, some of its dependencies and libcap2 / libzstd1 need to be armhf
+# architecture, because latest ntopng (4.3) is not available in arm64
+RUN apt-get clean all && \
+    dpkg --add-architecture armhf && \
+    apt-get update && \
+    apt-get -y -q install ntopng:armhf libcap2:armhf libzstd1:armhf
+    
+
+RUN echo '#!/bin/bash\n/etc/init.d/redis-server start\nntopng "$@" "$NTOP_CONFIG"' > /run.sh && \
+    chmod +x /run.sh
+
+EXPOSE 3000
+
+ENTRYPOINT ["/run.sh"]
     
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