diff --git a/transport-site/Dockerfile b/transport-site/Dockerfile
index ffd779d..c4ac17a 100644
--- a/transport-site/Dockerfile
+++ b/transport-site/Dockerfile
@@ -12,7 +12,7 @@
 #
 
 # We are interested in the binaries compiled on that container:
-FROM ghcr.io/etalab/transport-tools:master as transport-tools
+FROM ghcr.io/etalab/transport-tools:v1.0.1 as transport-tools
 
 FROM hexpm/elixir:1.12.2-erlang-24.0.4-ubuntu-focal-20210325