diff --git a/demo-targets/dummy-ssh/container/Dockerfile b/demo-targets/dummy-ssh/container/Dockerfile
index 08461af1c6..98a4db70ab 100644
--- a/demo-targets/dummy-ssh/container/Dockerfile
+++ b/demo-targets/dummy-ssh/container/Dockerfile
@@ -4,7 +4,7 @@
 
 # From https://gdevillele.github.io/engine/examples/running_ssh_service/
 # This file is authored by Docker Inc. and is not covered by the Apache2 Licence by the secureCodeBox project.
-FROM ubuntu:24.04
+FROM ubuntu:26.04
 
 RUN apt-get update && apt-get install -y openssh-server
 RUN mkdir /var/run/sshd
diff --git a/scanners/ncrack/scanner/Dockerfile b/scanners/ncrack/scanner/Dockerfile
index 991912dc24..9b354f437a 100644
--- a/scanners/ncrack/scanner/Dockerfile
+++ b/scanners/ncrack/scanner/Dockerfile
@@ -2,11 +2,11 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
-FROM ubuntu:24.04
+FROM ubuntu:26.04
 ARG scannerVersion
 
 RUN apt-get update \
-    && apt-get install ncrack=$scannerVersion+debian-5ubuntu1 -y \
+    && apt-get install ncrack=$scannerVersion+debian-6build1 -y \
     && rm -rf /var/lib/apt/lists/*
 RUN groupadd -g 1001 ncrack \
     && useradd -M -u 1001 -g 1001 ncrack