diff --git a/circle.yml b/circle.yml
index 3f0b8dfb..2b402c16 100644
--- a/circle.yml
+++ b/circle.yml
@@ -14,7 +14,7 @@ dependencies:
   pre:
       - sudo curl -L https://github.com/docker/compose/releases/download/1.8.1/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
       - sudo chmod +x /usr/local/bin/docker-compose
-      - yarn global add triton || cat /home/ubuntu/.yarn-config/global/yarn-error.log
+      - yarn global add triton@4.15.0 || cat /home/ubuntu/.yarn-config/global/yarn-error.log
       - echo '{"url":"https://eu-ams-1.api.joyent.com","account":"'$SDC_ACCOUNT'","keyId":"c3:30:35:9b:85:48:73:44:31:cc:4b:2e:6a:00:16:e2","name":"eu-ams-1","curr":true}' | triton profile create -f -
       - triton env --docker eu-ams-1
       - mkdir -p ${CIRCLE_TEST_REPORTS}/tap-xunit/