diff --git a/Dockerfile.chall-manager b/Dockerfile.chall-manager
index 4862ffd..d8d5ba8 100644
--- a/Dockerfile.chall-manager
+++ b/Dockerfile.chall-manager
@@ -1,5 +1,5 @@
 # Build stage
-FROM golang:1.23.4@sha256:585103a29aa6d4c98bbb45d2446e1fdf41441698bbdf707d1801f5708e479f04 AS builder
+FROM golang:1.23.5@sha256:51a6466e8dbf3e00e422eb0f7a97ac450b2d57b33617bbe8d2ee0bddcd9d0d37 AS builder
 
 WORKDIR /go/src
 COPY go.mod go.sum ./
diff --git a/Dockerfile.chall-manager-janitor b/Dockerfile.chall-manager-janitor
index 1f5ada3..aeeec3d 100644
--- a/Dockerfile.chall-manager-janitor
+++ b/Dockerfile.chall-manager-janitor
@@ -1,5 +1,5 @@
 # Build stage
-FROM golang:1.23.4@sha256:585103a29aa6d4c98bbb45d2446e1fdf41441698bbdf707d1801f5708e479f04 AS builder
+FROM golang:1.23.5@sha256:51a6466e8dbf3e00e422eb0f7a97ac450b2d57b33617bbe8d2ee0bddcd9d0d37 AS builder
 
 WORKDIR /go/src
 COPY go.mod go.sum ./