diff --git a/Dockerfile b/Dockerfile
index e8335fb..c83c2f8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/linuxserver/baseimage-alpine:3.11
+FROM ghcr.io/linuxserver/baseimage-alpine:3.15
 
 # set version label
 ARG BUILD_DATE
@@ -8,99 +8,100 @@ LABEL build_version="Linuxserver.io version:- ${VERSION} Build-date:- ${BUILD_DA
 LABEL maintainer="aptalca"
 
 RUN \
- echo "**** install build packages ****" && \
- apk add --no-cache --virtual=build-dependencies --upgrade \
-	cmake \
-	ffmpeg-dev \
-	fftw-dev \
-	g++ \
-	gcc \
-	git \
-	jpeg-dev \
-	libpng-dev \
-	make \
-	mpg123-dev \
-	openjpeg-dev \
-	python3-dev && \
- echo "**** install runtime packages ****" && \
- apk add --no-cache --upgrade \
-	curl \
-	expat \
-	ffmpeg \
-	ffmpeg-libs \
-	fftw \
-	flac \
-	gdbm \
-	gst-plugins-good \
-	gstreamer \
-	jpeg \
-	jq \
-	lame \
-	libffi \
-	libpng \
-	mpg123 \
-	nano \
-	openjpeg \
-	py3-gobject3 \
-	py3-pip \
-	py3-pylast \
-	python3 \
-	sqlite-libs \
-	tar \
-	wget && \
- echo "**** compile mp3gain ****" && \
- mkdir -p \
-	/tmp/mp3gain-src && \
- curl -o \
- /tmp/mp3gain-src/mp3gain.zip -sL \
-	https://sourceforge.net/projects/mp3gain/files/mp3gain/1.6.1/mp3gain-1_6_1-src.zip && \
- cd /tmp/mp3gain-src && \
- unzip -qq /tmp/mp3gain-src/mp3gain.zip && \
- sed -i "s#/usr/local/bin#/usr/bin#g" /tmp/mp3gain-src/Makefile && \
- make && \
- make install && \
- echo "**** compile mp3val ****" && \
- mkdir -p \
-	/tmp/mp3val-src && \
- curl -o \
- /tmp/mp3val-src/mp3val.tar.gz -sL \
-	https://downloads.sourceforge.net/mp3val/mp3val-0.1.8-src.tar.gz && \
- cd /tmp/mp3val-src && \
- tar xzf /tmp/mp3val-src/mp3val.tar.gz --strip 1 && \
- make -f Makefile.linux && \
- cp -p mp3val /usr/bin && \
- echo "**** compile chromaprint ****" && \
- git clone https://bitbucket.org/acoustid/chromaprint.git \
-	/tmp/chromaprint && \
- cd /tmp/chromaprint && \
- cmake \
-	-DBUILD_TOOLS=ON \
-	-DCMAKE_BUILD_TYPE=Release \
-	-DCMAKE_INSTALL_PREFIX:PATH=/usr && \
- make && \
- make install && \
- echo "**** install pip packages ****" && \
- if [ -z ${BEETS_VERSION+x} ]; then \
-	BEETS_VERSION=$(curl -sL  https://pypi.python.org/pypi/beets/json \
-	|jq -r '. | .info.version'); \
- fi && \
- pip3 install --no-cache-dir -U \
-	beautifulsoup4 \
-	beets==${BEETS_VERSION} \
-	beets-extrafiles \
-	discogs-client \
-	flask \
-	pillow \
-	pip \
-	pyacoustid \
-	requests \
-	unidecode && \
- echo "**** cleanup ****" && \
- apk del --purge \
-	build-dependencies && \
- rm -rf \
-	/root/.cache \
-	/tmp/*
+  echo "**** install build packages ****" && \
+  apk add --no-cache --virtual=build-dependencies --upgrade \
+    cmake \
+    ffmpeg-dev \
+    fftw-dev \
+    g++ \
+    gcc \
+    git \
+    jpeg-dev \
+    libpng-dev \
+    make \
+    mpg123-dev \
+    openjpeg-dev \
+    python3-dev && \
+  echo "**** install runtime packages ****" && \
+  apk add --no-cache --upgrade \
+    curl \
+    expat \
+    ffmpeg \
+    ffmpeg-libs \
+    fftw \
+    flac \
+    gdbm \
+    gst-plugins-good \
+    gstreamer \
+    jpeg \
+    jq \
+    lame \
+    libffi \
+    libpng \
+    mpg123 \
+    nano \
+    openjpeg \
+    py3-gobject3 \
+    py3-pip \
+    py3-pylast \
+    python3 \
+    sqlite-libs \
+    tar \
+    wget && \
+  echo "**** compile mp3gain ****" && \
+  mkdir -p \
+    /tmp/mp3gain-src && \
+  curl -o \
+    /tmp/mp3gain-src/mp3gain.zip -sL \
+    https://sourceforge.net/projects/mp3gain/files/mp3gain/1.6.1/mp3gain-1_6_1-src.zip && \
+  cd /tmp/mp3gain-src && \
+  unzip -qq /tmp/mp3gain-src/mp3gain.zip && \
+  sed -i "s#/usr/local/bin#/usr/bin#g" /tmp/mp3gain-src/Makefile && \
+  make && \
+  make install && \
+  echo "**** compile mp3val ****" && \
+  mkdir -p \
+    /tmp/mp3val-src && \
+  curl -o \
+  /tmp/mp3val-src/mp3val.tar.gz -sL \
+    https://downloads.sourceforge.net/mp3val/mp3val-0.1.8-src.tar.gz && \
+  cd /tmp/mp3val-src && \
+  tar xzf /tmp/mp3val-src/mp3val.tar.gz --strip 1 && \
+  make -f Makefile.linux && \
+  cp -p mp3val /usr/bin && \
+  echo "**** compile chromaprint ****" && \
+  git clone https://bitbucket.org/acoustid/chromaprint.git \
+    /tmp/chromaprint && \
+  cd /tmp/chromaprint && \
+  cmake \
+    -DBUILD_TOOLS=ON \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_INSTALL_PREFIX:PATH=/usr && \
+  make && \
+  make install && \
+  echo "**** install pip packages ****" && \
+  if [ -z ${BEETS_VERSION+x} ]; then \
+    BEETS_VERSION=$(curl -sL  https://pypi.python.org/pypi/beets/json \
+    |jq -r '. | .info.version'); \
+  fi && \
+  python3 -m pip install --upgrade pip && \
+  pip3 install -U --no-cache-dir --find-links https://wheel-index.linuxserver.io/alpine/ \
+    wheel \
+    beautifulsoup4 \
+    beets==${BEETS_VERSION} \
+    beets-extrafiles \
+    discogs-client \
+    flask \
+    pillow \
+    pyacoustid \
+    requests \
+    unidecode && \
+  echo "**** cleanup ****" && \
+  apk del --purge \
+    build-dependencies && \
+  rm -rf \
+    /root/.cache \
+    /tmp/*
 
 # environment settings
 ENV BEETSDIR="/config" \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 477d5ea..f50ebc7 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -1,4 +1,4 @@
-FROM ghcr.io/linuxserver/baseimage-alpine:arm64v8-3.11
+FROM ghcr.io/linuxserver/baseimage-alpine:arm64v8-3.15
 
 # set version label
 ARG BUILD_DATE
@@ -8,99 +8,100 @@ LABEL build_version="Linuxserver.io version:- ${VERSION} Build-date:- ${BUILD_DA
 LABEL maintainer="aptalca"
 
 RUN \
- echo "**** install build packages ****" && \
- apk add --no-cache --virtual=build-dependencies --upgrade \
-	cmake \
-	ffmpeg-dev \
-	fftw-dev \
-	g++ \
-	gcc \
-	git \
-	jpeg-dev \
-	libpng-dev \
-	make \
-	mpg123-dev \
-	openjpeg-dev \
-	python3-dev && \
- echo "**** install runtime packages ****" && \
- apk add --no-cache --upgrade \
-	curl \
-	expat \
-	ffmpeg \
-	ffmpeg-libs \
-	fftw \
-	flac \
-	gdbm \
-	gst-plugins-good \
-	gstreamer \
-	jpeg \
-	jq \
-	lame \
-	libffi \
-	libpng \
-	mpg123 \
-	nano \
-	openjpeg \
-	py3-gobject3 \
-	py3-pip \
-	py3-pylast \
-	python3 \
-	sqlite-libs \
-	tar \
-	wget && \
- echo "**** compile mp3gain ****" && \
- mkdir -p \
-	/tmp/mp3gain-src && \
- curl -o \
- /tmp/mp3gain-src/mp3gain.zip -sL \
-	https://sourceforge.net/projects/mp3gain/files/mp3gain/1.6.1/mp3gain-1_6_1-src.zip && \
- cd /tmp/mp3gain-src && \
- unzip -qq /tmp/mp3gain-src/mp3gain.zip && \
- sed -i "s#/usr/local/bin#/usr/bin#g" /tmp/mp3gain-src/Makefile && \
- make && \
- make install && \
- echo "**** compile mp3val ****" && \
- mkdir -p \
-	/tmp/mp3val-src && \
- curl -o \
- /tmp/mp3val-src/mp3val.tar.gz -sL \
-	https://downloads.sourceforge.net/mp3val/mp3val-0.1.8-src.tar.gz && \
- cd /tmp/mp3val-src && \
- tar xzf /tmp/mp3val-src/mp3val.tar.gz --strip 1 && \
- make -f Makefile.linux && \
- cp -p mp3val /usr/bin && \
- echo "**** compile chromaprint ****" && \
- git clone https://bitbucket.org/acoustid/chromaprint.git \
-	/tmp/chromaprint && \
- cd /tmp/chromaprint && \
- cmake \
-	-DBUILD_TOOLS=ON \
-	-DCMAKE_BUILD_TYPE=Release \
-	-DCMAKE_INSTALL_PREFIX:PATH=/usr && \
- make && \
- make install && \
- echo "**** install pip packages ****" && \
- if [ -z ${BEETS_VERSION+x} ]; then \
-	BEETS_VERSION=$(curl -sL  https://pypi.python.org/pypi/beets/json \
-	|jq -r '. | .info.version'); \
- fi && \
- pip3 install --no-cache-dir -U \
-	beautifulsoup4 \
-	beets==${BEETS_VERSION} \
-	beets-extrafiles \
-	discogs-client \
-	flask \
-	pillow \
-	pip \
-	pyacoustid \
-	requests \
-	unidecode && \
- echo "**** cleanup ****" && \
- apk del --purge \
-	build-dependencies && \
- rm -rf \
-	/root/.cache \
-	/tmp/*
+  echo "**** install build packages ****" && \
+  apk add --no-cache --virtual=build-dependencies --upgrade \
+    cmake \
+    ffmpeg-dev \
+    fftw-dev \
+    g++ \
+    gcc \
+    git \
+    jpeg-dev \
+    libpng-dev \
+    make \
+    mpg123-dev \
+    openjpeg-dev \
+    python3-dev && \
+  echo "**** install runtime packages ****" && \
+  apk add --no-cache --upgrade \
+    curl \
+    expat \
+    ffmpeg \
+    ffmpeg-libs \
+    fftw \
+    flac \
+    gdbm \
+    gst-plugins-good \
+    gstreamer \
+    jpeg \
+    jq \
+    lame \
+    libffi \
+    libpng \
+    mpg123 \
+    nano \
+    openjpeg \
+    py3-gobject3 \
+    py3-pip \
+    py3-pylast \
+    python3 \
+    sqlite-libs \
+    tar \
+    wget && \
+  echo "**** compile mp3gain ****" && \
+  mkdir -p \
+    /tmp/mp3gain-src && \
+  curl -o \
+    /tmp/mp3gain-src/mp3gain.zip -sL \
+    https://sourceforge.net/projects/mp3gain/files/mp3gain/1.6.1/mp3gain-1_6_1-src.zip && \
+  cd /tmp/mp3gain-src && \
+  unzip -qq /tmp/mp3gain-src/mp3gain.zip && \
+  sed -i "s#/usr/local/bin#/usr/bin#g" /tmp/mp3gain-src/Makefile && \
+  make && \
+  make install && \
+  echo "**** compile mp3val ****" && \
+  mkdir -p \
+    /tmp/mp3val-src && \
+  curl -o \
+  /tmp/mp3val-src/mp3val.tar.gz -sL \
+    https://downloads.sourceforge.net/mp3val/mp3val-0.1.8-src.tar.gz && \
+  cd /tmp/mp3val-src && \
+  tar xzf /tmp/mp3val-src/mp3val.tar.gz --strip 1 && \
+  make -f Makefile.linux && \
+  cp -p mp3val /usr/bin && \
+  echo "**** compile chromaprint ****" && \
+  git clone https://bitbucket.org/acoustid/chromaprint.git \
+    /tmp/chromaprint && \
+  cd /tmp/chromaprint && \
+  cmake \
+    -DBUILD_TOOLS=ON \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_INSTALL_PREFIX:PATH=/usr && \
+  make && \
+  make install && \
+  echo "**** install pip packages ****" && \
+  if [ -z ${BEETS_VERSION+x} ]; then \
+    BEETS_VERSION=$(curl -sL  https://pypi.python.org/pypi/beets/json \
+    |jq -r '. | .info.version'); \
+  fi && \
+  python3 -m pip install --upgrade pip && \
+  pip3 install -U --no-cache-dir --find-links https://wheel-index.linuxserver.io/alpine/ \
+    wheel \
+    beautifulsoup4 \
+    beets==${BEETS_VERSION} \
+    beets-extrafiles \
+    discogs-client \
+    flask \
+    pillow \
+    pyacoustid \
+    requests \
+    unidecode && \
+  echo "**** cleanup ****" && \
+  apk del --purge \
+    build-dependencies && \
+  rm -rf \
+    /root/.cache \
+    /tmp/*
 
 # environment settings
 ENV BEETSDIR="/config" \
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index b4b683f..65fec10 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -1,4 +1,4 @@
-FROM ghcr.io/linuxserver/baseimage-alpine:arm32v7-3.11
+FROM ghcr.io/linuxserver/baseimage-alpine:arm32v7-3.15
 
 # set version label
 ARG BUILD_DATE
@@ -8,99 +8,100 @@ LABEL build_version="Linuxserver.io version:- ${VERSION} Build-date:- ${BUILD_DA
 LABEL maintainer="aptalca"
 
 RUN \
- echo "**** install build packages ****" && \
- apk add --no-cache --virtual=build-dependencies --upgrade \
-	cmake \
-	ffmpeg-dev \
-	fftw-dev \
-	g++ \
-	gcc \
-	git \
-	jpeg-dev \
-	libpng-dev \
-	make \
-	mpg123-dev \
-	openjpeg-dev \
-	python3-dev && \
- echo "**** install runtime packages ****" && \
- apk add --no-cache --upgrade \
-	curl \
-	expat \
-	ffmpeg \
-	ffmpeg-libs \
-	fftw \
-	flac \
-	gdbm \
-	gst-plugins-good \
-	gstreamer \
-	jpeg \
-	jq \
-	lame \
-	libffi \
-	libpng \
-	mpg123 \
-	nano \
-	openjpeg \
-	py3-gobject3 \
-	py3-pip \
-	py3-pylast \
-	python3 \
-	sqlite-libs \
-	tar \
-	wget && \
- echo "**** compile mp3gain ****" && \
- mkdir -p \
-	/tmp/mp3gain-src && \
- curl -o \
- /tmp/mp3gain-src/mp3gain.zip -sL \
-	https://sourceforge.net/projects/mp3gain/files/mp3gain/1.6.1/mp3gain-1_6_1-src.zip && \
- cd /tmp/mp3gain-src && \
- unzip -qq /tmp/mp3gain-src/mp3gain.zip && \
- sed -i "s#/usr/local/bin#/usr/bin#g" /tmp/mp3gain-src/Makefile && \
- make && \
- make install && \
- echo "**** compile mp3val ****" && \
- mkdir -p \
-	/tmp/mp3val-src && \
- curl -o \
- /tmp/mp3val-src/mp3val.tar.gz -sL \
-	https://downloads.sourceforge.net/mp3val/mp3val-0.1.8-src.tar.gz && \
- cd /tmp/mp3val-src && \
- tar xzf /tmp/mp3val-src/mp3val.tar.gz --strip 1 && \
- make -f Makefile.linux && \
- cp -p mp3val /usr/bin && \
- echo "**** compile chromaprint ****" && \
- git clone https://bitbucket.org/acoustid/chromaprint.git \
-	/tmp/chromaprint && \
- cd /tmp/chromaprint && \
- cmake \
-	-DBUILD_TOOLS=ON \
-	-DCMAKE_BUILD_TYPE=Release \
-	-DCMAKE_INSTALL_PREFIX:PATH=/usr && \
- make && \
- make install && \
- echo "**** install pip packages ****" && \
- if [ -z ${BEETS_VERSION+x} ]; then \
-	BEETS_VERSION=$(curl -sL  https://pypi.python.org/pypi/beets/json \
-	|jq -r '. | .info.version'); \
- fi && \
- pip3 install --no-cache-dir -U \
-	beautifulsoup4 \
-	beets==${BEETS_VERSION} \
-	beets-extrafiles \
-	discogs-client \
-	flask \
-	pillow \
-	pip \
-	pyacoustid \
-	requests \
-	unidecode && \
- echo "**** cleanup ****" && \
- apk del --purge \
-	build-dependencies && \
- rm -rf \
-	/root/.cache \
-	/tmp/*
+  echo "**** install build packages ****" && \
+  apk add --no-cache --virtual=build-dependencies --upgrade \
+    cmake \
+    ffmpeg-dev \
+    fftw-dev \
+    g++ \
+    gcc \
+    git \
+    jpeg-dev \
+    libpng-dev \
+    make \
+    mpg123-dev \
+    openjpeg-dev \
+    python3-dev && \
+  echo "**** install runtime packages ****" && \
+  apk add --no-cache --upgrade \
+    curl \
+    expat \
+    ffmpeg \
+    ffmpeg-libs \
+    fftw \
+    flac \
+    gdbm \
+    gst-plugins-good \
+    gstreamer \
+    jpeg \
+    jq \
+    lame \
+    libffi \
+    libpng \
+    mpg123 \
+    nano \
+    openjpeg \
+    py3-gobject3 \
+    py3-pip \
+    py3-pylast \
+    python3 \
+    sqlite-libs \
+    tar \
+    wget && \
+  echo "**** compile mp3gain ****" && \
+  mkdir -p \
+    /tmp/mp3gain-src && \
+  curl -o \
+    /tmp/mp3gain-src/mp3gain.zip -sL \
+    https://sourceforge.net/projects/mp3gain/files/mp3gain/1.6.1/mp3gain-1_6_1-src.zip && \
+  cd /tmp/mp3gain-src && \
+  unzip -qq /tmp/mp3gain-src/mp3gain.zip && \
+  sed -i "s#/usr/local/bin#/usr/bin#g" /tmp/mp3gain-src/Makefile && \
+  make && \
+  make install && \
+  echo "**** compile mp3val ****" && \
+  mkdir -p \
+    /tmp/mp3val-src && \
+  curl -o \
+  /tmp/mp3val-src/mp3val.tar.gz -sL \
+    https://downloads.sourceforge.net/mp3val/mp3val-0.1.8-src.tar.gz && \
+  cd /tmp/mp3val-src && \
+  tar xzf /tmp/mp3val-src/mp3val.tar.gz --strip 1 && \
+  make -f Makefile.linux && \
+  cp -p mp3val /usr/bin && \
+  echo "**** compile chromaprint ****" && \
+  git clone https://bitbucket.org/acoustid/chromaprint.git \
+    /tmp/chromaprint && \
+  cd /tmp/chromaprint && \
+  cmake \
+    -DBUILD_TOOLS=ON \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_INSTALL_PREFIX:PATH=/usr && \
+  make && \
+  make install && \
+  echo "**** install pip packages ****" && \
+  if [ -z ${BEETS_VERSION+x} ]; then \
+    BEETS_VERSION=$(curl -sL  https://pypi.python.org/pypi/beets/json \
+    |jq -r '. | .info.version'); \
+  fi && \
+  python3 -m pip install --upgrade pip && \
+  pip3 install -U --no-cache-dir --find-links https://wheel-index.linuxserver.io/alpine/ \
+    wheel \
+    beautifulsoup4 \
+    beets==${BEETS_VERSION} \
+    beets-extrafiles \
+    discogs-client \
+    flask \
+    pillow \
+    pyacoustid \
+    requests \
+    unidecode && \
+  echo "**** cleanup ****" && \
+  apk del --purge \
+    build-dependencies && \
+  rm -rf \
+    /root/.cache \
+    /tmp/*
 
 # environment settings
 ENV BEETSDIR="/config" \
diff --git a/readme-vars.yml b/readme-vars.yml
index 8ae8a5a..a24f28c 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -52,6 +52,7 @@ app_setup_block: |
 
 # changelog
 changelogs:
+  - { date: "15.01.22:", desc: "Rebasing to alpine 3.15." }
   - { date: "19.12.19:", desc: "Rebasing to alpine 3.11." }
   - { date: "28.06.19:", desc: "Rebasing to alpine 3.10." }
   - { date: "12.05.19:", desc: "Add flac and mp3val binaries required for badfiles plugin." }