diff --git a/Dockerfile b/Dockerfile
index 7f1070b..776b762 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Use an official Elixir runtime as a parent image
-FROM elixir:1.12-slim AS build
+FROM elixir:1.15.6-slim AS build
 
 # Set the environment to production
 ENV MIX_ENV=prod