diff --git a/OpenCast.sh b/OpenCast.sh
index 237470d0..379ae31c 100755
--- a/OpenCast.sh
+++ b/OpenCast.sh
@@ -3,6 +3,7 @@
 #   ./OpenCast.sh command [<args>...]
 #
 # Commands:
+#   deps     Interact with dependencies.
 #   format   Run formatters on the source code.
 #   generate Generate content.
 #   lint     Lint the source code.
diff --git a/setup.sh b/setup.sh
index 25a2d31e..d93923b2 100755
--- a/setup.sh
+++ b/setup.sh
@@ -42,8 +42,7 @@ install_project_deps() {
   log_info "Installing project dependencies..."
 
   curl -sSL "https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py" | python3
-  "$ROOT/$INTERNAL_NAME.sh" service back update
-  (cd "$ROOT/webapp" && npm install)
+  "$ROOT/$INTERNAL_NAME.sh" deps install
 }
 
 # Format and install the systemd config file.
diff --git a/tool/deps.sh b/tool/deps.sh
new file mode 100755
index 00000000..60147e68
--- /dev/null
+++ b/tool/deps.sh
@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+# Usage:
+#   ./deps.sh command
+#
+# Commands:
+#   install   Install all dependencies.
+#   update    Update python dependencies.
+
+HERE="$(cd "$(dirname "${BASH_SOURCE:-0}")" && pwd)"
+ROOT="$(cd "$HERE/.." && pwd)"
+
+# shellcheck source=script/cli_builder.sh
+source "$ROOT/script/cli_builder.sh"
+# shellcheck source=script/env.sh
+source "$ROOT/script/env.sh"
+
+install() {
+  (cd "$ROOT" && poetry install)
+  (cd "$ROOT/webapp" && npm install)
+}
+
+update() {
+  (cd "$ROOT" && poetry update)
+}
+
+parse_args "$@"
+${ARGS["command"]}
diff --git a/tool/service-back.sh b/tool/service-back.sh
index 7b9daec4..e4124e76 100755
--- a/tool/service-back.sh
+++ b/tool/service-back.sh
@@ -8,7 +8,6 @@
 #   stop     Stop the service.
 #   restart  Restart the service.
 #   status   Display the status of the service.
-#   update   Update the dependencies of the service.
 
 HERE="$(cd "$(dirname "${BASH_SOURCE:-0}")" && pwd)"
 ROOT="$(cd "$HERE/.." && pwd)"
@@ -54,11 +53,5 @@ status() {
   log_status "$SERVICE_NAME" "$status"
 }
 
-update() {
-  log_info "Checking for updates."
-
-  poetry update
-}
-
 parse_args "$@"
 ${ARGS["command"]}