diff --git a/Dockerfile b/Dockerfile
index 091ea45..0c5b579 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@
 # See https://github.com/phusion/passenger-docker/blob/master/Changelog.md for
 # a list of version numbers.
 
-FROM singlecellportal/phusion_passenger-ruby32:2.5.1
+FROM singlecellportal/phusion_passenger-ruby34:3.1.2
 #FROM singlecellportal/phusion_passenger-full:1.0.8
 
 # Or, instead of the 'full' variant, use one of these:
@@ -54,7 +54,7 @@ RUN gem install bundler
 # Install imagemagick + dependencies
 RUN apt-get update && apt-get install -y -qq --no-install-recommends apt-utils sudo tzdata wget
 RUN apt-get update && apt-get install -y -qq --no-install-recommends imagemagick ghostscript build-essential unzip net-tools bc curl ssmtp debconf
-RUN apt-get update && apt-get install libaio1 shared-mime-info
+RUN apt-get update && apt-get install libaio1t64 shared-mime-info
 RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
 # Install nginx-headers-more package
diff --git a/lib/bash_include/dockerhub.bash b/lib/bash_include/dockerhub.bash
index 35f7dfb..c4ced86 100644
--- a/lib/bash_include/dockerhub.bash
+++ b/lib/bash_include/dockerhub.bash
@@ -49,7 +49,6 @@ function docker_image_has_been_published_unsafe {
 
 function docker_force_pull {
     local IMAGE="$1"
-
     echo "Forcefully pulling a fresh version of the docker image \"$IMAGE\":" >&2
     if docker inspect $IMAGE --format '.' >/dev/null 2>&1; then # if IMAGE exists
         docker tag $IMAGE temp || { echo "ERROR: FAILED at $BASH_SOURCE:$LINENO" >&2; return 1; }
diff --git a/lib/bin/rebuild_phusion_passenger_image b/lib/bin/rebuild_phusion_passenger_image
index f35ad6c..4bc7fcc 100755
--- a/lib/bin/rebuild_phusion_passenger_image
+++ b/lib/bin/rebuild_phusion_passenger_image
@@ -14,8 +14,9 @@ echo '########################################'
 
 PHUSION_PASSENGER_IMAGE_NAME="$(new_image_name_from_repo $PHUSION_PASSENGER_IMAGE_REPO)"
 IMAGE_FULLNAME="$DOCKER_NAMESPACE/$PHUSION_PASSENGER_IMAGE_NAME"
-# add -ruby32 to target image to match Dockerfile
-TARGET_IMAGE_NAME="$IMAGE_FULLNAME-ruby32:$PHUSION_PASSENGER_IMAGE_VERSION"
+# define Ruby target for use downstream in names/build targets
+RUBY_TARGET="ruby34"
+TARGET_IMAGE_NAME="$IMAGE_FULLNAME-$RUBY_TARGET:$PHUSION_PASSENGER_IMAGE_VERSION"
 
 github_checkout "$PHUSION_PASSENGER_IMAGE_REPO" "$PHUSION_PASSENGER_IMAGE_SOURCE_DIR" "$PHUSION_PASSENGER_IMAGE_REPO_RELEASE_TAG" || exit 1
 
@@ -25,17 +26,25 @@ export PATH="$BASE_DIR/lib/docker_shim:$PATH" # use a docker shim to filter out
 
 # remove registry prepend from Makefile
 MAKEFILE="Makefile"
-sed -i "s/NAME = \$(REGISTRY)\//NAME = /" $MAKEFILE
+echo "Removing REGISTRY from image name"
+sed -i "s/NAME ?= \$(REGISTRY)\//NAME ?= /" $MAKEFILE
 # fix Dockerfile.base and Dockerfile use correct images
 BASE_DOCKER_FILE="./image/Dockerfile.base"
 sed -i "s~^FROM[[:space:]].\{1,\}$~FROM $DOCKER_NAMESPACE/phusion_baseimage:$PHUSION_BASE_IMAGE_VERSION~" $BASE_DOCKER_FILE
 DOCKER_FILE="./image/Dockerfile"
-sed -i "s~^FROM[[:space:]].\{1,\}$~FROM $DOCKER_NAMESPACE/phusion_passenger-base\:current-\$ARCH~" $DOCKER_FILE
-MAKE_TARGET=build_ruby32
-MAKE_OUTPUT="$(make $MAKE_TARGET NAME="$IMAGE_FULLNAME")" || exit_with_error_message "make build FAILED" # build
-# due to mismatch of version tag in Makefile vs. version.txt, we must manually tag built image with correct name
-# since build_ruby33 will create an arm64 and amd64 image, we need to grab the correct (amd64) image id
-BUILT_IMAGE_TAG="$PHUSION_PASSENGER_IMAGE_VERSION-amd64"
+ARCH_NAME="amd64"
+INTER_IMAGE_NAME="phusion_passenger-base"
+INTER_IMAGE_TAG="latest-$ARCH_NAME"
+sed -i "s~^FROM[[:space:]].\{1,\}$~FROM $DOCKER_NAMESPACE/$INTER_IMAGE_NAME:$INTER_IMAGE_TAG~" $DOCKER_FILE
+# explicitly build intermediate "base" phusion_passenger image as this apparently doesn't build automatically anymore
+# set BUILD_ARM64 to 0 (false) to only build amd64 architecture
+export BUILD_ARM64=0
+INTER_MAKE_TARGET=build_base
+make $INTER_MAKE_TARGET NAME="$DOCKER_NAMESPACE/phusion_passenger" || exit_with_error_message "intermediate make build FAILED"
+MAKE_TARGET="build_$RUBY_TARGET"
+make $MAKE_TARGET NAME="$IMAGE_FULLNAME" || exit_with_error_message "make build FAILED" # build
+# correct name/tags to expected values
+BUILT_IMAGE_TAG="$PHUSION_PASSENGER_IMAGE_VERSION-$ARCH_NAME"
 AMD64_IMAGE_ID="$(docker images | grep $BUILT_IMAGE_TAG | awk '{print $3}')"
 echo "Re-tagging image $AMD64_IMAGE_ID with: docker tag $AMD64_IMAGE_ID $TARGET_IMAGE_NAME"
 docker tag $AMD64_IMAGE_ID $TARGET_IMAGE_NAME
diff --git a/requirements.bash b/requirements.bash
index 9aa474b..cb24f3f 100644
--- a/requirements.bash
+++ b/requirements.bash
@@ -1,8 +1,8 @@
-BASE_IMAGE="marketplace.gcr.io/google/ubuntu2004:latest" #aggressively keep up with security updates
+BASE_IMAGE="marketplace.gcr.io/google/ubuntu2404:latest" #aggressively keep up with security updates
 
 # pin to versioned releases of phusion images to avoid breakages
 PHUSION_BASE_IMAGE_REPO="phusion/baseimage-docker"
-PHUSION_BASE_IMAGE_VERSION="focal-1.2.0"
+PHUSION_BASE_IMAGE_VERSION="noble-1.0.0"
 
 PHUSION_PASSENGER_IMAGE_REPO="phusion/passenger-docker"
-PHUSION_PASSENGER_IMAGE_VERSION="2.5.1" #if you change this, you'll have to change the "FROM" line in ./Dockerfile also.
+PHUSION_PASSENGER_IMAGE_VERSION="3.1.2" #if you change this, you'll have to change the "FROM" line in ./Dockerfile also.
diff --git a/version.txt b/version.txt
index 276cbf9..4a36342 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-2.3.0
+3.0.0