diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3171046..9e03ec5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,38 +1,38 @@
 stages:
-  - "build:images"
-  - "push:images"
+  - 'build:images'
+  - 'push:images'
 
 variables:
-  DOCKER_HOST: "tcp://dockerd:2376"
-  DOCKER_TLS_SAN: "DNS:dockerd"
-  DOCKER_TLS_CERTDIR: "/certs"
-  DOCKER_DRIVER: "overlay2"
+  DOCKER_HOST: 'tcp://dockerd:2376'
+  DOCKER_TLS_SAN: 'DNS:dockerd'
+  DOCKER_TLS_CERTDIR: '/certs'
+  DOCKER_DRIVER: 'overlay2'
 
 default:
-  image: "docker.io/docker:stable"
+  image: 'docker.io/docker:stable'
   services:
-    - name: "docker.io/docker:dind"
-      alias: "dockerd"
+    - name: 'docker.io/docker:dind'
+      alias: 'dockerd'
 
 build:images:
-  stage: "build:images"
+  stage: 'build:images'
   before_script:
-    - "apk add --no-cache coreutils git make xz"
+    - 'apk add --no-cache coreutils git make xz'
   script:
-    - "make build-image save-image"
+    - 'make build-image save-image'
   artifacts:
-    expire_in: "1 day"
+    expire_in: '1 day'
     paths:
-      - "./dist/"
+      - './dist/'
 
 push:images:
-  stage: "push:images"
+  stage: 'push:images'
   dependencies:
-    - "build:images"
+    - 'build:images'
   only:
-    - "/^v[0-9]+$/"
+    - '/^v[0-9]+$/'
   before_script:
-    - "apk add --no-cache coreutils git make xz"
-    - "docker login -u \"${CI_REGISTRY_USER:?}\" -p \"${CI_REGISTRY_PASSWORD:?}\" \"${CI_REGISTRY:?}\""
+    - 'apk add --no-cache coreutils git make xz'
+    - 'docker login -u "${CI_REGISTRY_USER:?}" -p "${CI_REGISTRY_PASSWORD:?}" "${CI_REGISTRY:?}"'
   script:
-    - "make load-image push-image"
+    - 'make load-image push-image'