diff --git a/src/dev/build/tasks/os_packages/docker_generator/run.ts b/src/dev/build/tasks/os_packages/docker_generator/run.ts
index 84460e8149481..72a4afdb8d36f 100644
--- a/src/dev/build/tasks/os_packages/docker_generator/run.ts
+++ b/src/dev/build/tasks/os_packages/docker_generator/run.ts
@@ -38,7 +38,7 @@ export async function runDockerGenerator(
   }
 ) {
   let baseOSImage = '';
-  if (flags.ubuntu) baseOSImage = 'ubuntu:20.04';
+  if (flags.ubuntu) baseOSImage = 'ubuntu:22.04';
   if (flags.ubi) baseOSImage = 'docker.elastic.co/ubi8/ubi-minimal:latest';
   const ubiVersionTag = 'ubi8';
 
diff --git a/src/dev/build/tasks/os_packages/docker_generator/templates/base/Dockerfile b/src/dev/build/tasks/os_packages/docker_generator/templates/base/Dockerfile
index 17102eb26438b..ef26d050be2f1 100644
--- a/src/dev/build/tasks/os_packages/docker_generator/templates/base/Dockerfile
+++ b/src/dev/build/tasks/os_packages/docker_generator/templates/base/Dockerfile
@@ -179,7 +179,7 @@ ENTRYPOINT ["/bin/tini", "--"]
 CMD ["/app/kibana.sh"]
 # Generate a stub command that will be overwritten at runtime
 RUN mkdir /app && \
-    echo -e '#!/bin/bash\nexec /usr/local/bin/kibana-docker' > /app/kibana.sh && \
+    /usr/bin/echo -e '#!/bin/bash\nexec /usr/local/bin/kibana-docker' > /app/kibana.sh && \
     chmod 0555 /app/kibana.sh
 {{/cloud}}