diff --git a/Dockerfile.chall-manager b/Dockerfile.chall-manager
index 6f7cd1a1..6e44a741 100644
--- a/Dockerfile.chall-manager
+++ b/Dockerfile.chall-manager
@@ -1,5 +1,5 @@
 # Build stage
-FROM golang:1.27rc1@sha256:016d7b2a8dcddeb54626f397e6d7c58758db12d097ac4174b7b05e1de9e5bddc AS builder
+FROM golang:1.27rc3@sha256:6a284ec7a8c67eff5882aaa53b07a57ee397553f8c85a92e5fc97c517f12201f AS builder
 
 WORKDIR /go/src
 COPY go.mod go.sum ./
diff --git a/Dockerfile.chall-manager-janitor b/Dockerfile.chall-manager-janitor
index e93238c0..7a6705df 100644
--- a/Dockerfile.chall-manager-janitor
+++ b/Dockerfile.chall-manager-janitor
@@ -1,5 +1,5 @@
 # Build stage
-FROM golang:1.27rc1@sha256:016d7b2a8dcddeb54626f397e6d7c58758db12d097ac4174b7b05e1de9e5bddc AS builder
+FROM golang:1.27rc3@sha256:6a284ec7a8c67eff5882aaa53b07a57ee397553f8c85a92e5fc97c517f12201f AS builder
 
 WORKDIR /go/src
 COPY go.mod go.sum ./