diff --git a/Dockerfile b/Dockerfile
index 8d6afe8ee..91557dc2b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM elixir:alpine
+FROM elixir:1.13.4-alpine
 
 RUN apk add --no-cache inotify-tools postgresql-client yarn file make gcc libc-dev argon2 imagemagick cmake build-base libwebp-tools bash ncurses git python3