diff --git a/Dockerfile b/Dockerfile
index 0a864e1..8d316fd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG SONARR_VERSION=3.0.9.1549
+ARG SONARR_VERSION=4.0.0.401
 #FROM golang:bullseye AS builder
 #ARG SHOUTRRR_VERSION
 #RUN git clone -b ${SHOUTRRR_VERSION} --depth 1 https://github.com/containrrr/shoutrrr.git ./shoutrrr
@@ -6,10 +6,11 @@ ARG SONARR_VERSION=3.0.9.1549
 #    mkdir /output && \
 #    go build -o /output ./shoutrrr
 
-FROM debian:10-slim
+FROM debian:buster-slim
 ARG SONARR_VERSION
 WORKDIR /root
 RUN echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
+
 # Install tools to add extra repos
 RUN apt-get update && \
     apt-get -y --no-install-recommends install \
@@ -21,37 +22,41 @@ RUN apt-get update && \
       apt-transport-https \
       tar \
       dirmngr
+
 # Add Mono repo key
-RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF \
 # Add Mono repo
- && echo "deb https://download.mono-project.com/repo/debian stable-buster main" | tee /etc/apt/sources.list.d/mono-official-stable.list \
 # Mediainfo repo install
- && curl -O https://mediaarea.net/repo/deb/repo-mediaarea_1.0-20_all.deb \
- && dpkg -i repo-mediaarea_1.0-20_all.deb \
- && apt-get update
+RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF && \
+    echo "deb https://download.mono-project.com/repo/debian stable-buster main" | tee /etc/apt/sources.list.d/mono-official-stable.list && \
+    curl -O https://mediaarea.net/repo/deb/repo-mediaarea_1.0-21_all.deb && \
+    dpkg -i repo-mediaarea_1.0-21_all.deb && \
+    apt-get update
+
 # Install dependancies
 RUN apt-get -y install \
       sqlite3 \
       mono-complete \
-      mediainfo \
- && rm -rf /var/lib/apt/lists/*
+      mediainfo && \
+    rm -rf /var/lib/apt/lists/*
+
 # Create the user that will run the service
-RUN useradd -UM -u 1000 -d /app -s /bin/bash sonarr  
+# RUN useradd -UM -u 1000 -d /app -s /bin/bash sonarr  
 # Download and extract the package
-RUN mkdir -p /app/bin \
- && mkdir /config \
- && curl -fsSL "https://download.sonarr.tv/v3/main/${SONARR_VERSION}/Sonarr.main.${SONARR_VERSION}.linux.tar.gz" | tar xzf - -C /app/bin --strip-components=1 \
- && rm -rf /app/bin/Sonarr.Update \
- && echo -e "PackageVersion=${SONARR_VERSION}\nPackageAuthor=Michael\nUpdateMethod=Docker\nBranch=main" > "/app/package_info" \
- && chmod -R u=rwX,go=rX /app \
- && chown -R sonarr /app \
- && chown -R sonarr /config
+RUN mkdir -p /app/bin && \
+    mkdir /config && \
+    curl -fsSL "https://services.sonarr.tv/v1/download/develop/latest?version=4&os=linux&arch=x64" | tar xzf - -C /app/bin --strip-components=1 && \
+    rm -rf /app/bin/Sonarr.Update && \
+    echo -e "PackageVersion=${SONARR_VERSION}\nPackageAuthor=Michael\nUpdateMethod=Docker\nBranch=main" > "/app/package_info" && \
+    chmod -R ug=rwX,o=rX /app
+#     chown -R sonarr /app && \
+#     chown -R sonarr /config
+
 # Set startup conditions
 VOLUME /config
 EXPOSE 8989
-USER sonarr
+# USER sonarr
 WORKDIR /app
-ENTRYPOINT ["mono", "--debug", "/app/bin/Sonarr.exe"]
+ENTRYPOINT ["/app/bin/Sonarr"]
 CMD ["--nobrowser", "--data=/config"]