diff --git a/example/trivial/ubuntu-x86_64/Dockerfile b/example/trivial/ubuntu-x86_64/Dockerfile
index 8f9bdf17..5c367244 100644
--- a/example/trivial/ubuntu-x86_64/Dockerfile
+++ b/example/trivial/ubuntu-x86_64/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:18.04
+FROM ubuntu:24.04
 
 WORKDIR /app
 ADD . /app
diff --git a/example/trivial/ubuntu-x86_64/Dockerfile-nginx b/example/trivial/ubuntu-x86_64/Dockerfile-nginx
index 8aef99f2..ea883dc4 100644
--- a/example/trivial/ubuntu-x86_64/Dockerfile-nginx
+++ b/example/trivial/ubuntu-x86_64/Dockerfile-nginx
@@ -1,4 +1,4 @@
-FROM ubuntu:18.04
+FROM ubuntu:24.04
 
 RUN set -x \
 # Install package dependencies