diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a92aaba..5fcbf3a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -12,6 +12,7 @@ stages:
   - mirror
 
 before_script:
+  - apk add bash
   - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY
 
 mirror:
diff --git a/README.md b/README.md
index e7e2426..10f332a 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,7 @@ Ensure to add global `before_script`:
 
 ```
 before_script:
+  - apk add bash
   - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY
 ```