diff --git a/.travis.yml b/.travis.yml
index 3e587758e0..f8d546fc05 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,6 +13,7 @@ before_install:
   - sudo apt-get update
   - sudo apt-get install -y cmake libssh2-1-dev ghostscript
   - sudo apt-get install imagemagick libmagickwand-dev
+  - nvm install 11.0
 
 install:
   - travis_wait bundle install --path=~/.bundle --jobs=3 --retry=3 --without development production console
@@ -25,7 +26,7 @@ before_script:
   - sudo ln -s /usr/share/zoneinfo/US/Eastern /etc/localtime
   - bundle exec rake i18n:js:export
   - chmod u+x bin/webpack
-  - RAILS_ENV=test bundle exec rake webpacker:compile
+  - NODE_ENV=test RAILS_ENV=test bundle exec rake webpacker:compile
   - psql -c 'create database markus_test;' -U postgres
   - bundle exec rake db:migrate RAILS_ENV=test
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 8f6b048aed..c7fe6a36ee 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -168,7 +168,7 @@ GEM
     mysql2 (0.5.3)
     net-ssh (5.2.0)
     nio4r (2.5.2)
-    nokogiri (1.10.5)
+    nokogiri (1.10.7)
       mini_portile2 (~> 2.4.0)
     parallel (1.19.1)
     parser (2.6.5.0)
@@ -342,7 +342,7 @@ GEM
     upsert (2.2.1)
     vegas (0.1.11)
       rack (>= 1.0.0)
-    webpacker (4.0.7)
+    webpacker (4.2.2)
       activesupport (>= 4.2)
       rack-proxy (>= 0.6.1)
       railties (>= 4.2)