diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
index 13c91cb..355e228 100644
--- a/.github/workflows/dotnet.yml
+++ b/.github/workflows/dotnet.yml
@@ -22,6 +22,7 @@ jobs:
           - 6
           - 7
           - 8
+          - 9
     steps:
       - uses: actions/checkout@v4
             # Setup QEMU for ARM64 Build
diff --git a/dotnet/9/Dockerfile b/dotnet/9/Dockerfile
new file mode 100644
index 0000000..7ffef58
--- /dev/null
+++ b/dotnet/9/Dockerfile
@@ -0,0 +1,25 @@
+FROM        --platform=$TARGETOS/$TARGETARCH ghcr.io/parkervcp/yolks:debian
+
+LABEL       author="Torsten Widmann" maintainer="info@goover.de"
+
+ENV         DEBIAN_FRONTEND noninteractive
+
+RUN         apt update -y \
+            && apt upgrade -y \
+            && apt install -y apt-transport-https wget curl iproute2 libgdiplus tini \
+            && wget https://dot.net/v1/dotnet-install.sh \
+            && D_V="$(curl -sSL https://dotnet.microsoft.com/en-us/download/dotnet/9.0 | grep -i  '<h3 id="sdk-9.*">SDK 9.*.*</h3>'  | head -1 | awk -F\" '{print $3}' | awk '{print $2;}' | sed 's/<\/h3>//g')" \ 
+            && chmod +x dotnet-install.sh \
+			&& ./dotnet-install.sh -i /usr/share -v $D_V \
+            && ln -s /usr/share/dotnet /usr/bin/dotnet
+
+USER        container
+ENV         USER=container HOME=/home/container
+WORKDIR     /home/container
+
+STOPSIGNAL SIGINT
+
+COPY        --chown=container:container ./../entrypoint.sh /entrypoint.sh
+RUN         chmod +x /entrypoint.sh
+ENTRYPOINT    ["/usr/bin/tini", "-g", "--"]
+CMD         ["/entrypoint.sh"]