diff --git a/Dockerfile b/Dockerfile
index 9e6613f..3d88345 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@
 # The build stage compiles the binary, and the runtime stage copies
 # only the binary and the required configuration.
 
-FROM docker.iranserver.com/golang:1.21-alpine AS builder
+FROM docker.iranserver.com/golang:1.26-alpine AS builder
 WORKDIR /app
 
 RUN /usr/local/go/bin/go env -w GOPROXY=https://go.iranserver.com/repository/go/ \