diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2c562ae..b37349f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,7 +1,7 @@
-image: docker:latest
+image: docker:latest@sha256:7d85d0eda291f1a7ab6df4a9d1802b5ad4cf9145a088bd11188c78dcb5c7392b
 
 services:
-  - docker:dind
+  - docker:dind@sha256:7d85d0eda291f1a7ab6df4a9d1802b5ad4cf9145a088bd11188c78dcb5c7392b
 
 before_script:
   - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY