diff --git a/Dockerfile b/Dockerfile
index b21efa3..c3f354c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM --platform=${TARGETPLATFORM} golang:1.20-alpine AS builder
+FROM --platform=${TARGETPLATFORM} golang:1.21-alpine AS builder
 
 RUN set -eux \
     && apk add --no-cache make fish
diff --git a/Dockerfile.dev b/Dockerfile.dev
index e81455d..64724f5 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -1,4 +1,4 @@
-FROM golang:1.20-alpine
+FROM golang:1.21-alpine
 
 RUN apk add --no-cache make fish