diff --git a/workbench/Dockerfile b/workbench/Dockerfile
index 3821ce10711ec83f0ee80d859f604bfd5f8b8eb9..da20c9b0aca86d2ccaa5adc4ebc97eba937e6517 100644
--- a/workbench/Dockerfile
+++ b/workbench/Dockerfile
@@ -144,6 +144,7 @@ RUN apt-get update && \
         tk-dev \
         tmux \
         tnftp \
+        transmission-cli/unstable \
         ttyrec \
         udftools \
         unzip \