diff --git a/.travis.yml b/.travis.yml
index 333a290db..53716f01f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -71,7 +71,7 @@ before_install:
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]] && [[ -z "$SKIP_NOMAD_TESTS" ]]; then sudo -E bash ./scripts/travis-mac-priv.sh ; fi
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]] && [[ -z "$SKIP_NOMAD_TESTS" ]]; then sudo -E bash ./scripts/travis-linux.sh ; fi
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]] && [[ "$RUN_STATIC_CHECKS" ]]; then sudo -E bash ./scripts/vagrant-linux-priv-protoc.sh; fi
-  - if [[ "$RUN_UI_TESTS" ]]; then curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.0.1 ; fi
+  - if [[ "$RUN_UI_TESTS" ]]; then curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.15.2 ; fi
   - if [[ "$RUN_UI_TESTS" ]]; then export PATH="$HOME/.yarn/bin:$PATH" ; fi
 
 install:
diff --git a/scripts/vagrant-linux-unpriv-ui.sh b/scripts/vagrant-linux-unpriv-ui.sh
index be5994b7f..03a9f19f5 100755
--- a/scripts/vagrant-linux-unpriv-ui.sh
+++ b/scripts/vagrant-linux-unpriv-ui.sh
@@ -14,7 +14,7 @@ nvm alias default 10
 npm install -g ember-cli
 
 # Install Yarn for front-end dependency management
-curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.7.0
+curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.15.2
 
 # Install Chrome for running tests (in headless mode)
 wget -qO- - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -