diff --git a/Dockerfile b/Dockerfile
index 23c0c8dd..44e5aba5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -58,6 +58,7 @@ RUN : \
   && echo 'deb https://packages.erlang-solutions.com/debian bullseye contrib' >> /etc/apt/sources.list \
   && apt-get update -qq \
   && apt-get install -y --no-install-recommends \
+    dotnet-sdk-9.0 \
     dotnet-sdk-8.0 \
     dotnet-sdk-7.0 \
     docker-ce-cli \