diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6eede8b..69aade2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -26,7 +26,6 @@ code_analyze:
 
 dart_test:
   stage: coverage
-  image: dart
   dependencies: [
     code_analyze
   ]
@@ -36,7 +35,6 @@ dart_test:
 
 code_quality:
   stage: coverage
-  image: dart
   before_script:
     - dart pub global activate dart_code_metrics
   script:
@@ -50,7 +48,6 @@ code_quality:
 
 dry-run:
   stage: publish
-  image: dart
   script:
     - rm -rf ./docs
     - dart pub get
@@ -58,7 +55,6 @@ dry-run:
 
 pub-dev:
   stage: publish
-  image: dart
   dependencies: [
     dry-run
   ]