diff --git a/docker/Dockerfile b/docker/Dockerfile
index c9e35de5..c1820240 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM crystallang/crystal:1.12.2-alpine AS builder
+FROM crystallang/crystal:1.16.2-alpine AS builder
 
 RUN apk add --no-cache sqlite-static yaml-static