diff --git a/content/ja/docs/setup/production-environment/tools/kubeadm/install-kubeadm.md b/content/ja/docs/setup/production-environment/tools/kubeadm/install-kubeadm.md
index f442096833019..07cbdfa4a6443 100644
--- a/content/ja/docs/setup/production-environment/tools/kubeadm/install-kubeadm.md
+++ b/content/ja/docs/setup/production-environment/tools/kubeadm/install-kubeadm.md
@@ -199,7 +199,7 @@ baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
 enabled=1
 gpgcheck=1
 repo_gpgcheck=1
-gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
+gpgkey=https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 
 # SELinuxをpermissiveモードに設定する(効果的に無効化する)
diff --git a/content/ja/docs/tasks/tools/install-kubectl.md b/content/ja/docs/tasks/tools/install-kubectl.md
index 688c996b1b408..8a904b78d837d 100644
--- a/content/ja/docs/tasks/tools/install-kubectl.md
+++ b/content/ja/docs/tasks/tools/install-kubectl.md
@@ -72,7 +72,7 @@ baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
 enabled=1
 gpgcheck=1
 repo_gpgcheck=1
-gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
+gpgkey=https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 yum install -y kubectl
 {{< /tab >}}