diff --git a/Dockerfile b/Dockerfile
index a8c79b32..61026e8c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM mcr.microsoft.com/dotnet/sdk:6.0
+FROM mcr.microsoft.com/dotnet/sdk:8.0
 LABEL maintainer "Ocaramba <ocaramba@objectivity.co.uk>"
 #=========
 # Midnight Commander, lbzip2