diff --git a/tools/update-babel-eslint.sh b/tools/update-babel-eslint.sh
index b64b8f25d32f7c..36bfd918916ebd 100755
--- a/tools/update-babel-eslint.sh
+++ b/tools/update-babel-eslint.sh
@@ -2,8 +2,6 @@
 
 # Shell script to update babel-eslint in the source tree to the latest release.
 
-# Depends on npm, npx, and node being in $PATH.
-
 # This script must be be in the tools directory when it runs because it uses
 # $0 to determine directories to work in.
 
@@ -11,15 +9,20 @@ cd "$( dirname "${0}" )" || exit
 rm -rf node_modules/@babel
 mkdir babel-eslint-tmp
 cd babel-eslint-tmp || exit
-npm init --yes
 
-npm install --global-style --no-bin-links --production --no-package-lock @babel/core @babel/eslint-parser@latest @babel/plugin-syntax-class-properties@latest @babel/plugin-syntax-top-level-await@latest
+ROOT="$PWD/../.."
+[ -z "$NODE" ] && NODE="$ROOT/out/Release/node"
+[ -x "$NODE" ] || NODE=`command -v node`
+NPM="$ROOT/deps/npm"
+
+"$NODE" "$NPM" init --yes
+"$NODE" "$NPM" install --global-style --no-bin-links --production --no-package-lock @babel/core @babel/eslint-parser@latest @babel/plugin-syntax-class-properties@latest @babel/plugin-syntax-top-level-await@latest
 
 # Use dmn to remove some unneeded files.
-npx dmn@2.2.2 -f clean
+"$NODE" "$NPM" exec -- dmn@2.2.2 -f clean
 # Use removeNPMAbsolutePaths to remove unused data in package.json.
 # This avoids churn as absolute paths can change from one dev to another.
-npx removeNPMAbsolutePaths@1.0.4 .
+"$NODE" "$NPM" exec -- removeNPMAbsolutePaths@1.0.4 .
 
 cd ..
 mv babel-eslint-tmp/node_modules/@babel node_modules/@babel
diff --git a/tools/update-eslint.sh b/tools/update-eslint.sh
index 109390d2b27baf..eb1045267f70fc 100755
--- a/tools/update-eslint.sh
+++ b/tools/update-eslint.sh
@@ -2,8 +2,6 @@
 
 # Shell script to update ESLint in the source tree to the latest release.
 
-# Depends on npm, npx, and node being in $PATH.
-
 # This script must be in the tools directory when it runs because it uses the
 # script source file path to determine directories to work in.
 
@@ -12,16 +10,22 @@ rm -rf node_modules/eslint node_modules/eslint-plugin-markdown
 (
     mkdir eslint-tmp
     cd eslint-tmp || exit
-    npm init --yes
 
-    npm install --global-style --no-bin-links --production --no-package-lock eslint@latest
-    npm install --global-style --no-bin-links --production --no-package-lock eslint-plugin-markdown@latest
+    ROOT="$PWD/../.."
+    [ -z "$NODE" ] && NODE="$ROOT/out/Release/node"
+    [ -x "$NODE" ] || NODE=`command -v node`
+    NPM="$ROOT/deps/npm"
+
+    "$NODE" "$NPM" init --yes
+
+    "$NODE" "$NPM" install --global-style --no-bin-links --production --no-package-lock eslint@latest
+    "$NODE" "$NPM" install --global-style --no-bin-links --production --no-package-lock eslint-plugin-markdown@latest
 
     # Use dmn to remove some unneeded files.
-    npx dmn@2.2.2 -f clean
+    "$NODE" "$NPM" exec -- dmn@2.2.2 -f clean
     # Use removeNPMAbsolutePaths to remove unused data in package.json.
     # This avoids churn as absolute paths can change from one dev to another.
-    npx removeNPMAbsolutePaths@1.0.4 .
+    "$NODE" "$NPM" exec -- removeNPMAbsolutePaths@1.0.4 .
 )
 
 mv eslint-tmp/node_modules/eslint node_modules/eslint