diff --git a/install.sh b/install.sh
index 4008099a3d..e1fed144ce 100755
--- a/install.sh
+++ b/install.sh
@@ -3,4 +3,4 @@
 set -e
 ./synapse/install.sh
 ./riot/install.sh
-npm install
+yarn install
diff --git a/riot/install.sh b/riot/install.sh
index b89a767446..9422bd225a 100755
--- a/riot/install.sh
+++ b/riot/install.sh
@@ -30,5 +30,5 @@ unzip -q riot.zip
 rm riot.zip
 mv riot-web-${RIOT_BRANCH} riot-web
 cd riot-web
-npm install
-npm run build
+yarn install
+yarn run build