diff --git a/scripts/install b/scripts/install
index d66615a..462868a 100644
--- a/scripts/install
+++ b/scripts/install
@@ -39,6 +39,9 @@ pushd $install_dir
 		--no-setup-nginx --no-setup-ssl --url http://$domain$path --port $port \
 		--db mysql --dbhost localhost --dbuser $db_user --dbpass $db_pwd --dbname $db_name \
 		--mail SMTP --mailhost localhost --mailport 465
+
+	# Cleanup cache
+	ynh_secure_remove --file=".cache/yarn"
 popd
 
 #=================================================
@@ -85,4 +88,3 @@ ynh_systemd_action --service_name=$app --action="start" --line_match="Ghost boot
 #=================================================
 
 ynh_script_progression --message="Installation of $app completed"
-
diff --git a/scripts/upgrade b/scripts/upgrade
index f5d59ad..72886ff 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -44,7 +44,7 @@ ynh_npm install --global npm@latest
 ynh_npm install --global yarn
 
 #=================================================
-# DOWNLOAD, CHECK AND UNPACK SOURCE
+# UPGRADE
 #=================================================
 
 # Up to v5.26.4~ynh1, we were downloading the source code and building the app by ourselves
@@ -95,6 +95,10 @@ then
 
 fi
 
+
+# Cleanup cache
+ynh_secure_remove --file="$install_dir/.cache/yarn"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================