diff --git a/Dockerfile b/Dockerfile
index 65ce125..9155085 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.21.0-alpine AS builder
+FROM golang:1.22.0-alpine AS builder
 RUN apk update && apk upgrade \
     && apk add --no-cache ca-certificates tzdata \
     && update-ca-certificates 2>/dev/null || true