diff --git a/contrib/build-linux/appimage/Dockerfile b/contrib/build-linux/appimage/Dockerfile
index fb5d3c425..e296d1265 100644
--- a/contrib/build-linux/appimage/Dockerfile
+++ b/contrib/build-linux/appimage/Dockerfile
@@ -1,7 +1,7 @@
 # Note: we deliberately use an old Ubuntu LTS as base image.
 # from https://docs.appimage.org/introduction/concepts.html :
 # "[AppImages] should be built on the oldest possible system, allowing them to run on newer system[s]"
-FROM ubuntu:16.04@sha256:a4fc0c40360ff2224db3a483e5d80e9164fe3fdce2a8439d2686270643974632
+FROM ubuntu:20.04
 LABEL description="Dedicated to building Electrum Dash appimage for Linux"
 
 ENV LC_ALL=C.UTF-8 LANG=C.UTF-8
@@ -9,43 +9,43 @@ ENV DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update -q && \
     apt-get install -qy \
-        git=1:2.7.4-0ubuntu1.10 \
-        wget=1.17.1-1ubuntu1.5 \
-        make=4.1-6 \
-        autotools-dev=20150820.1 \
-        autoconf=2.69-9 \
-        libtool=2.4.6-0.1 \
-        autopoint=0.19.7-2ubuntu3.1 \
-        xz-utils=5.1.1alpha+20120614-2ubuntu2 \
-        libssl-dev=1.0.2g-1ubuntu4.20 \
-        libssl1.0.0=1.0.2g-1ubuntu4.20 \
-        openssl=1.0.2g-1ubuntu4.20 \
-        zlib1g-dev=1:1.2.8.dfsg-2ubuntu4.3 \
-        libffi-dev=3.2.1-4 \
-        libncurses5-dev=6.0+20160213-1ubuntu1 \
-        libsqlite3-dev=3.11.0-1ubuntu1.5 \
-        libusb-1.0-0-dev=2:1.0.20-1 \
-        libudev-dev=229-4ubuntu21.31 \
-        gettext=0.19.7-2ubuntu3.1 \
-        libzbar0=0.10+doc-10ubuntu1  \
-        libdbus-1-3=1.10.6-1ubuntu3.6 \
-        libxkbcommon-x11-0=0.5.0-1ubuntu2.1 \
-        libxcb1=1.11.1-1ubuntu1 \
-        libxcb-xinerama0=1.11.1-1ubuntu1 \
-        libxcb-randr0=1.11.1-1ubuntu1 \
-        libxcb-render0=1.11.1-1ubuntu1 \
-        libxcb-shm0=1.11.1-1ubuntu1 \
-        libxcb-shape0=1.11.1-1ubuntu1 \
-        libxcb-sync1=1.11.1-1ubuntu1 \
-        libxcb-xfixes0=1.11.1-1ubuntu1 \
-        libxcb-xkb1=1.11.1-1ubuntu1 \
-        libxcb-icccm4=0.4.1-1ubuntu1 \
-        libxcb-image0=0.4.0-1build1 \
-        libxcb-keysyms1=0.4.0-1 \
-        libxcb-util1=0.4.0-0ubuntu3 \
-        libxcb-render-util0=0.3.9-1 \
-        libx11-xcb1=2:1.6.3-1ubuntu2.2 \
-        libc6-dev=2.23-0ubuntu11.3 \
+        git \
+        wget \
+        make \
+        autotools-dev \
+        autoconf \
+        libtool \
+        autopoint \
+        xz-utils \
+        libssl-dev \
+        libssl1.0.0 \
+        openssl \
+        zlib1g-dev \
+        libffi-dev \
+        libncurses5-dev \
+        libsqlite3-dev \
+        libusb-1.0-0-dev \
+        libudev-dev \
+        gettext \
+        libzbar0  \
+        libdbus-1-3 \
+        libxkbcommon-x11-0 \
+        libxcb1 \
+        libxcb-xinerama0 \
+        libxcb-randr0 \
+        libxcb-render0 \
+        libxcb-shm0 \
+        libxcb-shape0 \
+        libxcb-sync1 \
+        libxcb-xfixes0 \
+        libxcb-xkb1 \
+        libxcb-icccm4 \
+        libxcb-image0 \
+        libxcb-keysyms1 \
+        libxcb-util1 \
+        libxcb-render-util0 \
+        libx11-xcb1 \
+        libc6-dev \
         libgmp-dev \
         && \
     rm -rf /var/lib/apt/lists/* && \