diff --git a/Dockerfile b/Dockerfile
index a4fe71e..790c3d9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM elixir:1.11.4-alpine
+FROM elixir:1.13.1-alpine
 
 ENV UID=911 GID=911 \
     MIX_ENV=prod