diff --git a/Dockerfile b/Dockerfile
index 2f2da51da3..394c5cb211 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM bitwalker/alpine-elixir:1.11.4 AS builder
+FROM bitwalker/alpine-elixir:1.14.0 AS builder
 
 # The following are build arguments used to change variable parts of the image.
 # The name of your application/release (required)