diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a7292cb580bb70629054cc2fedd29d1b0af2ece8..c9fe3469d980b6ca5befc6c7264fa458627515dc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -84,6 +84,7 @@ testinfra:
     - eval $(ssh-agent -s)
     - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add - > /dev/null
     - cd test/
+    - export ANSIBLE_HOST_KEY_CHECKING=False
     - py.test -v -m 'testinfra' --connection=ansible --ansible-inventory=../clusters/ci-$CI_PIPELINE_ID/inventory.yml --hosts='ansible://*'
   only:
     changes:
@@ -102,6 +103,7 @@ certs:
     - eval $(ssh-agent -s)
     - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add - > /dev/null
     - cd test/
+    - export ANSIBLE_HOST_KEY_CHECKING=False
     - py.test -s -m 'certs' --connection=ansible --ansible-inventory=../clusters/ci-$CI_PIPELINE_ID/inventory.yml --hosts='ansible://*'
   only:
     changes: