diff --git a/docker/Dockerfile b/docker/Dockerfile
index 178c758fb..1346f6ebf 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM crystallang/crystal:1.4.0-alpine AS builder
+FROM crystallang/crystal:1.4.1-alpine AS builder
 RUN apk add --no-cache sqlite-static yaml-static
 
 ARG release
diff --git a/docker/Dockerfile.arm64 b/docker/Dockerfile.arm64
index abfbb9b76..75cab819b 100644
--- a/docker/Dockerfile.arm64
+++ b/docker/Dockerfile.arm64
@@ -1,5 +1,5 @@
 FROM alpine:edge AS builder
-RUN apk add --no-cache 'crystal=1.4.0-r0' shards sqlite-static yaml-static yaml-dev libxml2-dev zlib-static openssl-libs-static openssl-dev musl-dev
+RUN apk add --no-cache 'crystal=1.4.1-r0' shards sqlite-static yaml-static yaml-dev libxml2-dev zlib-static openssl-libs-static openssl-dev musl-dev
 
 ARG release