diff --git a/internal/witness/cmd/feeder/Dockerfile b/internal/witness/cmd/feeder/Dockerfile
index bbb22f44f1..59a9d04832 100644
--- a/internal/witness/cmd/feeder/Dockerfile
+++ b/internal/witness/cmd/feeder/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.21.3-bookworm@sha256:5bafbbb109f02aaf6b41ddc19f54919773c3006f1cbda1599112603367642f0e as builder
+FROM golang:1.21.4-bookworm@sha256:85aacbed94a248f792beb89198649ddbc730649054b397f8d689e9c4c4cceab7 as builder
 
 ARG GOFLAGS=""
 ENV GOFLAGS=$GOFLAGS