diff --git a/Dockerfile b/Dockerfile
index 429e18e9..c05b1c9e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,7 +21,5 @@ ARG POSTGRES_BASE_VERSION
 # Always force rebuild of this layer
 ARG TIMESTAMP=1
 COPY third-party/pgxman /tmp/pgxman/
-RUN set -eux; \
-  /tmp/pgxman/install.sh /tmp/pgxman/pgxman_${POSTGRES_BASE_VERSION}.yaml; \
-  pgxman install pgsql-http=1.5.0@${POSTGRES_BASE_VERSION}; \
-  rm -rf /tmp/pgxman
+RUN curl -sfL https://github.com/pgxman/release/releases/latest/download/install.sh | sh -s -- /tmp/pgxman/pgxman_${POSTGRES_BASE_VERSION}.yaml && \
+  pgxman install pgsql-http=1.5.0@${POSTGRES_BASE_VERSION} --yes
diff --git a/Dockerfile.spilo b/Dockerfile.spilo
index c6cbeaac..8ff07108 100644
--- a/Dockerfile.spilo
+++ b/Dockerfile.spilo
@@ -28,6 +28,4 @@ ENV PGVERSION=${POSTGRES_BASE_VERSION} SPILO_PROVIDER=local PGUSER_SUPERUSER=pos
 # Always force rebuild of this layer
 ARG TIMESTAMP=1
 COPY third-party/pgxman /tmp/pgxman/
-RUN set -eux; \
-  /tmp/pgxman/install.sh /tmp/pgxman/pgxman_13.yaml /tmp/pgxman/pgxman_14_spilo.yaml; \
-  rm -rf /tmp/pgxman
+RUN curl -sfL https://github.com/pgxman/release/releases/latest/download/install.sh | sh -s -- /tmp/pgxman/pgxman_13.yaml /tmp/pgxman/pgxman_14_spilo.yaml
diff --git a/third-party/pgxman/install.sh b/third-party/pgxman/install.sh
deleted file mode 100755
index cc59ff12..00000000
--- a/third-party/pgxman/install.sh
+++ /dev/null
@@ -1,55 +0,0 @@
-#!/usr/bin/env bash
-
-set -euo pipefail
-
-main() {
-  install_pgxman
-
-  for _file in "$@"; do
-    echo "Installing extensions from ${_file}..."
-    pgxman install --file "$_file" || exit 1
-  done
-}
-
-install_pgxman() {
-  get_architecture || return 1
-  local _arch="$RETVAL"
-
-  echo "Installing PGXMan for ${_arch}..."
-
-  curl --silent --show-error --fail --location "https://github.com/pgxman/release/releases/latest/download/pgxman_linux_${_arch}.deb" --output "/tmp/pgxman_linux_${_arch}.deb"
-  apt update
-  apt install -y "/tmp/pgxman_linux_${_arch}.deb"
-  pgxman update
-}
-
-get_architecture() {
-  local _cputype _arch
-  _cputype="$(uname -m)"
-
-  case "$_cputype" in
-  i386 | i486 | i686 | i786 | x86)
-    _cputype=386
-    ;;
-
-  xscale | arm | armv6l | armv7l | armv8l)
-    _cputype=arm
-    ;;
-
-  aarch64 | arm64)
-    _cputype=arm64
-    ;;
-
-  x86_64 | x86-64 | x64 | amd64)
-    _cputype=amd64
-    ;;
-
-  *)
-    err "unknown CPU type: $_cputype"
-    ;;
-  esac
-
-  RETVAL="$_cputype"
-}
-
-main "$@" || exit 1