diff --git a/Dockerfile b/Dockerfile
index 3fc5b20b6db..d4409c1b766 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 # Dockerfile # Plots2
 # https://github.com/publiclab/plots2
 
-FROM ruby:2.3
+FROM ruby:2.3-jessie
 
 LABEL maintainer="Sebastian Silva <sebastian@fuentelibre.org>"
 LABEL description="This image deploys Plots2."