diff --git a/src/shadowbox/docker/build.action.sh b/src/shadowbox/docker/build.action.sh
index 273737420..4f703f540 100755
--- a/src/shadowbox/docker/build.action.sh
+++ b/src/shadowbox/docker/build.action.sh
@@ -21,7 +21,16 @@ export DOCKER_BUILDKIT=1
 # Newer node images have no valid content trust data.
 # Pin the image node:16.18.0-alpine3.16 by hash.
 # See image at https://hub.docker.com/_/node/tags?page=1&name=16.18.0-alpine3.16
-readonly NODE_IMAGE="node@sha256:264861cd2f785a2b727e9f908065e8d9e9358fcc1308da3cb207d9cba69afee2"
+readonly NODE_IMAGE=$(
+    if [[ "$(uname -m)" == "x86_64" ]]; then
+        echo "node@sha256:264861cd2f785a2b727e9f908065e8d9e9358fcc1308da3cb207d9cba69afee2" 
+    elif [[ "$(uname -m)" == "aarch64" ]]; then
+        echo "node@sha256:e2aff82eea79469af43ddd121f1c8f8c91a501e838534bd3991e225401b2c38d" 
+    else
+        echo "Unsupported architecture"
+        exit 1
+    fi
+)
 
 # Doing an explicit `docker pull` of the container base image to work around an issue where
 # Travis fails to pull the base image when using BuildKit. Seems to be related to:
diff --git a/third_party/outline-ss-server/Makefile b/third_party/outline-ss-server/Makefile
index b678c2dc9..4cea3bc89 100644
--- a/third_party/outline-ss-server/Makefile
+++ b/third_party/outline-ss-server/Makefile
@@ -1,17 +1,23 @@
 VERSION=1.4.0
+SHA256_linux_x86_64=f51bcb6391cca0ae828620c429e698a3b7c409de2374c52f113ca9a525e021a8
+SHA256_linux_aarch64=14ae581414c9aab04253a385ef1854c003d09f545f6f8a3a55aa987f0c6d3859
+APP_ARCH_linux_x86_64=x86_64
+APP_ARCH_linux_aarch64=arm64
 
 .PHONY: all
 all: bin/linux/outline-ss-server bin/macos/outline-ss-server
 
 bin/linux/outline-ss-server: OS=linux
-bin/linux/outline-ss-server: SHA256=f51bcb6391cca0ae828620c429e698a3b7c409de2374c52f113ca9a525e021a8
+bin/linux/outline-ss-server: SHA256=$(shell echo $(SHA256_linux_$(shell uname -m)))
+bin/linux/outline-ss-server: APP_ARCH=$(shell echo $(APP_ARCH_linux_$(shell uname -m)))
 
 bin/macos/outline-ss-server: OS=macos
 bin/macos/outline-ss-server: SHA256=c85b2e8ae2d48482cbc101e54dcb7eed074a22c14a3a7301993e5f786b34081d
+bin/macos/outline-ss-server: APP_ARCH=$(APP_ARCH_linux_x86_64)
 
 TEMPFILE := $(shell mktemp)
 bin/%/outline-ss-server:
-	node ../../src/build/download_file.mjs --url="https://github.com/Jigsaw-Code/outline-ss-server/releases/download/v$(VERSION)/outline-ss-server_$(VERSION)_$(OS)_x86_64.tar.gz" --out="$(TEMPFILE)" --sha256=$(SHA256)
+	node ../../src/build/download_file.mjs --url="https://github.com/Jigsaw-Code/outline-ss-server/releases/download/v$(VERSION)/outline-ss-server_$(VERSION)_$(OS)_$(APP_ARCH).tar.gz" --out="$(TEMPFILE)" --sha256=$(SHA256)
 	mkdir -p "$(dir $@)"
 	tar -zx -f "$(TEMPFILE)" -C "$(dir $@)" "$(notdir $@)"
 	chmod +x "$@"
diff --git a/third_party/prometheus/Makefile b/third_party/prometheus/Makefile
index 85221e2be..315a8b557 100644
--- a/third_party/prometheus/Makefile
+++ b/third_party/prometheus/Makefile
@@ -1,19 +1,26 @@
 VERSION=2.37.1
+SHA256_linux_x86_64=753f66437597cf52ada98c2f459aa8c03745475c249c9f2b40ac7b3919131ba6
+SHA256_linux_aarch64=b59a66fb5c7ec5acf6bf426793528a5789a1478a0dad8c64edc2843caf31b1b8
+APP_ARCH_linux_x86_64=amd64
+APP_ARCH_linux_aarch64=arm64
 
 .PHONY: all
 all: bin/linux/prometheus bin/macos/prometheus
 
 bin/linux/prometheus: OS=linux
-bin/linux/prometheus: SHA256=753f66437597cf52ada98c2f459aa8c03745475c249c9f2b40ac7b3919131ba6
+bin/linux/prometheus: ARCH=$(shell uname -m)
+bin/linux/prometheus: SHA256=$(shell echo $(SHA256_linux_$(ARCH)))
+bin/linux/prometheus: APP_ARCH=$(shell echo $(APP_ARCH_linux_$(ARCH)))
 
 bin/macos/prometheus: OS=darwin
 bin/macos/prometheus: SHA256=e03a43d98955ac3500f57353ea74b5df829074205f195ea6b3b88f55c4575c79
+bin/macos/prometheus: APP_ARCH=$(APP_ARCH_linux_x86_64)
 
 bin/%/prometheus: TEMPFILE := $(shell mktemp)
 bin/%/prometheus:
-	node ../../src/build/download_file.mjs --url="https://github.com/prometheus/prometheus/releases/download/v$(VERSION)/prometheus-$(VERSION).$(OS)-amd64.tar.gz" --out="$(TEMPFILE)" --sha256=$(SHA256)
+	node ../../src/build/download_file.mjs --url="https://github.com/prometheus/prometheus/releases/download/v$(VERSION)/prometheus-$(VERSION).$(OS)-$(APP_ARCH).tar.gz" --out="$(TEMPFILE)" --sha256=$(SHA256)
 	mkdir -p "$(dir $@)"
-	tar -zx -f "$(TEMPFILE)" --strip-components=1 -C "$(dir $@)" prometheus-$(VERSION).$(OS)-amd64/prometheus
+	tar -zx -f "$(TEMPFILE)" --strip-components=1 -C "$(dir $@)" prometheus-$(VERSION).$(OS)-$(APP_ARCH)/prometheus
 	chmod +x "$@"
 	rm -f $(TEMPFILE)