diff --git a/.github/workflows/phpstan.yaml b/.github/workflows/phpstan.yaml
index a760097..6ee5e9e 100644
--- a/.github/workflows/phpstan.yaml
+++ b/.github/workflows/phpstan.yaml
@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        eccube-versions: ['4.2', '4.3']
+        eccube-versions: ['4.3']
         php-versions: [ '8.2' ]
         database: [ 'mysql' ]
         include:
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 590889c..d051a88 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        eccube-versions: [ 4.3' ]
+        eccube-versions: [ '4.3' ]
         php-versions: [ '8.2', '8.3' ]
         database: [ 'mysql', 'mysql8', 'pgsql' ]
         include: