diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 85ab8bb..cc9a463 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -6,7 +6,7 @@ before_script:
  - wget https://releases.hashicorp.com/packer/${PACKER_VERSION}/packer_${PACKER_VERSION}_SHA256SUMS
 
  - sed -i '/.*linux_amd64.zip/!d' packer_${PACKER_VERSION}_SHA256SUMS
- - sha256sum -cs packer_${PACKER_VERSION}_SHA256SUMS
+ - sha256sum --check --strict packer_${PACKER_VERSION}_SHA256SUMS
  - unzip packer_${PACKER_VERSION}_linux_amd64.zip -d .
  - rm -f packer_${PACKER_VERSION}_linux_amd64.zip