diff --git a/idc-deploy-shell/install-deps.sh b/idc-deploy-shell/install-deps.sh
index b7fb66e9a82..a9b973018ea 100644
--- a/idc-deploy-shell/install-deps.sh
+++ b/idc-deploy-shell/install-deps.sh
@@ -26,8 +26,8 @@ apt-get update -qq
 apt-get upgrade -y
 
 apt-get install -y	git
-apt-get install -y make # needed by bun install...
-apt-get install -y g++ # needed by bun install...
+apt-get install -y make # native builds (node-gyp)
+apt-get install -y g++
 
 #
 # Following instructions at https://github.com/nodesource/distributions/blob/master/README.md#deb
@@ -36,18 +36,14 @@ apt-get install -y g++ # needed by bun install...
 curl -sL https://deb.nodesource.com/setup_18.x | bash -
 apt-get install -y nodejs
 
-# Install yarn and bun using npm (more reliable than curl)
-echo "Installing Yarn via npm..."
-npm install -g yarn
-
-echo "Installing Bun via npm..."
-npm install -g bun
+# Yarn via Corepack — matches package.json "packageManager" (yarn@1.22.22)
+echo "Enabling Corepack and Yarn..."
+corepack enable
+corepack prepare yarn@1.22.22 --activate
 
 # Verify installations
 echo "Installation complete!"
 echo "Yarn location: $(which yarn)"
 echo "Yarn version: $(yarn --version)"
-echo "Bun location: $(which bun)"
-echo "Bun version: $(bun --version)"
 
 echo "Libraries Installed"