diff --git a/Dockerfile b/Dockerfile
index cb4342e..9aabae3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,34 +4,35 @@ ENV TZ=Etc/UTC
 RUN echo "deb mirror://mirrors.ubuntu.com/mirrors.txt $(. /etc/os-release && echo $VERSION_CODENAME) main restricted universe multiverse" > /etc/apt/sources.list && \
     echo "deb mirror://mirrors.ubuntu.com/mirrors.txt $(. /etc/os-release && echo $VERSION_CODENAME) main restricted universe multiverse" >> /etc/apt/sources.list && \
     echo "deb mirror://mirrors.ubuntu.com/mirrors.txt $(. /etc/os-release && echo $VERSION_CODENAME)-security main restricted universe multiverse" >> /etc/apt/sources.list && \
-    apt update -y && \
-    apt install -y --no-install-recommends ca-certificates && \
+    echo 'APT::Get::Always-Include-Phased-Updates "true";' | tee -a /etc/apt/apt.conf.d/99-phased-updates && \
+    apt-get update -y && \
+    apt-get install -y --no-install-recommends ca-certificates && \
     update-ca-certificates && \
-    apt install -y --no-install-recommends software-properties-common && \
+    apt-get install -y --no-install-recommends software-properties-common && \
     add-apt-repository main && \
     add-apt-repository universe && \
     add-apt-repository restricted && \
     add-apt-repository multiverse && \
-    apt update -y && \
-    apt install -y --no-install-recommends tzdata && \
-    apt install -y --no-install-recommends keyboard-configuration && \
-    apt install -y --no-install-recommends build-essential && \
-    apt install -y --no-install-recommends zlib1g-dev libncurses5-dev && \
-    apt install -y --no-install-recommends libgdbm-dev libnss3-dev libssl-dev && \
-    apt install -y --no-install-recommends libreadline-dev libffi-dev wget && \
-    apt install -y --no-install-recommends --no-install-recommends && \
-    apt install -y --no-install-recommends  python3-dev && \
-    apt install -y --no-install-recommends python3-pip && \
-    apt install -y --no-install-recommends python3-wheel && \
-    apt install -y --no-install-recommends python3-setuptools && \
-    apt install -y --no-install-recommends libblas-dev && \
-    apt install -y --no-install-recommends liblapack-dev && \
-    apt install -y --no-install-recommends liblapacke-dev && \
-    apt install -y --no-install-recommends git && \
-    apt install -y --no-install-recommends ImageMagick* && \
-    apt install -y --no-install-recommends xorg && \
-    apt install -y --no-install-recommends libgfortran4 && \
-    apt install -y --no-install-recommends libopenmpi-dev && \
+    apt-get update -y && \
+    apt-get install -y --no-install-recommends tzdata && \
+    apt-get install -y --no-install-recommends keyboard-configuration && \
+    apt-get install -y --no-install-recommends build-essential && \
+    apt-get install -y --no-install-recommends zlib1g-dev libncurses5-dev && \
+    apt-get install -y --no-install-recommends libgdbm-dev libnss3-dev libssl-dev && \
+    apt-get install -y --no-install-recommends libreadline-dev libffi-dev wget && \
+    apt-get install -y --no-install-recommends --no-install-recommends && \
+    apt-get install -y --no-install-recommends  python3-dev && \
+    apt-get install -y --no-install-recommends python3-pip && \
+    apt-get install -y --no-install-recommends python3-wheel && \
+    apt-get install -y --no-install-recommends python3-setuptools && \
+    apt-get install -y --no-install-recommends libblas-dev && \
+    apt-get install -y --no-install-recommends liblapack-dev && \
+    apt-get install -y --no-install-recommends liblapacke-dev && \
+    apt-get install -y --no-install-recommends git && \
+    apt-get install -y --no-install-recommends ImageMagick* && \
+    apt-get install -y --no-install-recommends xorg && \
+    apt-get install -y --no-install-recommends libgfortran4 && \
+    apt-get install -y --no-install-recommends libopenmpi-dev && \
     rm -rf /var/lib/apt/lists/* /var/cache/apt/archives/*
 
 RUN python3 --version