diff --git a/Dockerfile b/Dockerfile
index 6febe1d..e117a81 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,18 +3,18 @@ FROM ubuntu:latest
 RUN \
     set -eux && \
     export DEBIAN_FRONTEND=noninteractive && \
-    apt update && \
-    apt -y upgrade && \
-    apt -y install \
+    apt-get update && \
+    apt-get -y upgrade && \
+    apt-get -y install \
         bash build-essential ccache clang clang-format clang-tidy cmake cppcheck curl doxygen gdb git gnupg gperf iputils-ping \
         libboost-all-dev libfcgi-dev libgl1-mesa-dev libjemalloc-dev libjemalloc2 libmlpack-dev libtbb-dev libssl-dev libyaml-cpp-dev \
         linux-tools-generic nano nasm ninja-build openjdk-11-jdk openssh-server openssl pkg-config python3 qt5-default spawn-fcgi \
         sudo tini unzip valgrind wget zip && \
-    apt -y install patch perl tar cpio unzip rsync bc libelf-dev libssl-dev && \
-    apt -y install --no-install-recommends libx11-xcb-dev libxcb-dri3-dev libxcb-icccm4-dev libxcb-image0-dev libxcb-keysyms1-dev libxcb-randr0-dev libxcb-render-util0-dev libxcb-render0-dev libxcb-shape0-dev libxcb-sync-dev libxcb-util-dev libxcb-xfixes0-dev libxcb-xinerama0-dev libxcb-xkb-dev xorg-dev && \
-    apt -y autoremove && \
-    apt -y autoclean && \
-    apt -y clean && \
+    apt-get -y install patch perl tar cpio unzip rsync bc libelf-dev libssl-dev && \
+    apt-get -y install --no-install-recommends libx11-xcb-dev libxcb-dri3-dev libxcb-icccm4-dev libxcb-image0-dev libxcb-keysyms1-dev libxcb-randr0-dev libxcb-render-util0-dev libxcb-render0-dev libxcb-shape0-dev libxcb-sync-dev libxcb-util-dev libxcb-xfixes0-dev libxcb-xinerama0-dev libxcb-xkb-dev xorg-dev && \
+    apt-get -y autoremove && \
+    apt-get -y autoclean && \
+    apt-get -y clean && \
     rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* && \
     exit 0