diff --git a/services/mcp-firewall/Dockerfile b/services/mcp-firewall/Dockerfile
index 9fbeec1..6334f5f 100644
--- a/services/mcp-firewall/Dockerfile
+++ b/services/mcp-firewall/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/golang:1.26.3-alpine@sha256:91eda9776261207ea25fd06b5b7fed8d397dd2c0a283e77f2ab6e91bfa71079d AS build
+FROM docker.io/library/golang:1.26.5-alpine@sha256:0178a641fbb4858c5f1b48e34bdaabe0350a330a1b1149aabd498d0699ff5fb2 AS build
 WORKDIR /src
 COPY go.mod go.sum* ./
 RUN go mod download