diff --git a/docker/Dockerfile.arm64 b/docker/Dockerfile.arm64
index bee272c2..d82fa070 100644
--- a/docker/Dockerfile.arm64
+++ b/docker/Dockerfile.arm64
@@ -1,6 +1,6 @@
 FROM alpine:3.22 AS builder
 RUN apk add --no-cache \
-    'crystal=1.17.1-r0' shards \
+    'crystal=1.16.3-r0' shards \
     sqlite-static yaml-static yaml-dev \
     pcre2-static gc-static \
     libxml2-static zlib-static \