diff --git a/scripts/build-release.js b/scripts/build-release.js
index 8f45cd0..2d2c730 100644
--- a/scripts/build-release.js
+++ b/scripts/build-release.js
@@ -71,6 +71,9 @@ async function createRelease(appId) {
 	await createNextcloudSignature(appId, filePath);
 	await createGPGSignature(filePath);
 	await createGPGArmorSignature(filePath);
+
+	await execa('yarn', ['composer:install:dev']);
+	console.log('✔ composer dev dependencies installed'.green);
 }
 
 
diff --git a/scripts/publish-release.js b/scripts/publish-release.js
index 4b971d9..06a4d01 100644
--- a/scripts/publish-release.js
+++ b/scripts/publish-release.js
@@ -371,6 +371,9 @@ async function run() {
 	await pull();
 	console.log('✔ pulled latest changes'.green);
 
+	await execa('yarn', ['composer:install:dev']);
+	console.log('✔ composer dev dependencies installed'.green);
+
 	await notAlreadyTagged();
 	console.log('✔ not already tagged'.green);