diff --git a/release/arch/arm/build-arm.sh b/release/arch/arm/build-arm.sh
index cfed6749021c29b782d863c9db4c84e7ea900a07..68d0bcf4526d2219e0e3a88db36e66e3fd4c48be 100755
--- a/release/arch/arm/build-arm.sh
+++ b/release/arch/arm/build-arm.sh
@@ -66,9 +66,9 @@ cd ${RELEASES}/duniter
 echo "Copying Nodejs"
 cp -R "$DOWNLOADS/node-${NVER}-linux-${ARCH}" node
 
-echo "yarn"
-yarn
-yarn add duniter-ui@1.6.x --save --production
+npm install
+
+npm install duniter-ui@1.6.x --save --production
 SRC=`pwd`
 echo $SRC
 
diff --git a/release/arch/debian/build-deb.sh b/release/arch/debian/build-deb.sh
index 72540f48c54beb46a3f8af28ec7e368e7567feac..528b044cb93565a64a955afb5e8de84af9f8db60 100644
--- a/release/arch/debian/build-deb.sh
+++ b/release/arch/debian/build-deb.sh
@@ -78,25 +78,12 @@ cd ${RELEASES}/duniter
 # Remove git files
 rm -Rf .git
 [[ $? -eq 0 ]] && echo ">> VM: building modules..."
-[[ $? -eq 0 ]] && yarn
-#[[ $? -eq 0 ]] && echo ">> VM: running tests..."
-#[[ $? -eq 0 ]] && yarn test
+[[ $? -eq 0 ]] && npm install
 
 # Duniter UI
-[[ $? -eq 0 ]] && yarn add duniter-ui@1.6.x
-
+[[ $? -eq 0 ]] && npm install duniter-ui@1.6.x
 [[ $? -eq 0 ]] && npm prune --production
 
-
-# Specific modules that are not needed in a release
-rm -rf node_modules/materialize-css
-rm -rf node_modules/duniter-ui/app
-rm -rf node_modules/duniter-ui/vendor
-rm -rf node_modules/scryptb/node_modules/node-pre-gyp
-rm -rf node_modules/naclb/node_modules/node-pre-gyp
-rm -rf node_modules/wotb/node_modules/node-pre-gyp
-rm -rf node_modules/sqlite3/build
-
 cp -r "$RELEASES/duniter" "$RELEASES/desktop_"
 cp -r "$RELEASES/duniter" "$RELEASES/server_"