diff --git a/scripts/editor.bash b/scripts/editor.bash
index 473e729351..768246d084 100755
--- a/scripts/editor.bash
+++ b/scripts/editor.bash
@@ -2,6 +2,7 @@
 
 set -euxo pipefail
 
+npm install -g yarn
 pushd packages/mermaid
 # Append commit hash to version
 jq ".version = .version + \"+${COMMIT_REF:0:7}\"" package.json > package.tmp.json
@@ -21,11 +22,11 @@ cd mermaid-live-editor
 
 # We have to use npm instead of yarn because it causes trouble in netlify
 # Install dependencies
-npx yarn install
+yarn install
 
 # Link local mermaid to live editor
-npx yarn link mermaid     
+yarn link mermaid     
 
 # Force Build the site
-npx yarn run build -- --force
+yarn run build -- --force