diff --git a/content/posts/federated-matrix-server-synapse-on-oracle-clouds-free-tier.md b/content/posts/federated-matrix-server-synapse-on-oracle-clouds-free-tier.md
index f83211e..059c7a4 100644
--- a/content/posts/federated-matrix-server-synapse-on-oracle-clouds-free-tier.md
+++ b/content/posts/federated-matrix-server-synapse-on-oracle-clouds-free-tier.md
@@ -2,7 +2,7 @@
 series: Projects
 date: "2021-06-28T00:00:00Z"
 thumbnail: images/posts-2020/2xe34VJym.png
-last_modified_at: "2021-09-17"
+lastmod: "2021-09-17"
 tags:
 - docker
 - linux
diff --git a/content/posts/run-scripts-in-guest-os-with-vra-abx-actions.md b/content/posts/run-scripts-in-guest-os-with-vra-abx-actions.md
index 31b8c18..f43d447 100644
--- a/content/posts/run-scripts-in-guest-os-with-vra-abx-actions.md
+++ b/content/posts/run-scripts-in-guest-os-with-vra-abx-actions.md
@@ -2,7 +2,7 @@
 series: vRA8
 date: "2021-09-03T00:00:00Z"
 thumbnail: images/posts-2021/09/20210903_action_run_success.png
-last_modified_at: "2021-09-20"
+lastmod: "2021-09-20"
 tags:
 - vra
 - abx
diff --git a/content/posts/vra8-custom-provisioning-part-three.md b/content/posts/vra8-custom-provisioning-part-three.md
index 2b79b47..e8fa6d2 100644
--- a/content/posts/vra8-custom-provisioning-part-three.md
+++ b/content/posts/vra8-custom-provisioning-part-three.md
@@ -2,7 +2,7 @@
 series: vRA8
 date: "2021-04-19T08:34:30Z"
 thumbnail: images/posts-2020/K6vcxpDj8.png
-last_modified_at: "2021-10-01"
+lastmod: "2021-10-01"
 tags:
 - vmware
 - vra