diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index f27bc45..a908b43 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,5 +1,7 @@
-# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.191.0/containers/rust/.devcontainer/base.Dockerfile
-FROM mcr.microsoft.com/vscode/devcontainers/rust:0-1
+# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.195.0/containers/rust/.devcontainer/base.Dockerfile
+# [Choice] Debian OS version (use bullseye on local arm64/Apple Silicon): buster, bullseye
+ARG VARIANT="bullseye"
+FROM mcr.microsoft.com/vscode/devcontainers/rust:1-${VARIANT}
 
 # [Optional] Uncomment this section to install additional packages.
 # RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 807a2c2..cd194fd 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -1,9 +1,14 @@
 // For format details, see https://aka.ms/vscode-remote/devcontainer.json or this file's README at:
-// https://github.com/microsoft/vscode-dev-containers/tree/v0.191.0/containers/rust
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.195.0/containers/rust
 {
 	"name": "Rust Sample",
 	"build": {
-		"dockerfile": "Dockerfile"
+		"dockerfile": "Dockerfile",
+		"args": {
+			// Use the VARIANT arg to pick a Debian OS version: buster, bullseye
+			// Use bullseye when on local on arm64/Apple Silicon.
+			"VARIANT": "bullseye"
+		}
 	},
 	"runArgs": [ "--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined" ],