diff --git a/config.toml b/config.toml
index e4a77af..40cfb4e 100644
--- a/config.toml
+++ b/config.toml
@@ -72,5 +72,5 @@ post = "/:year/:month/:day/:15:04:05/"
     lineNos = true
     lineNumbersInTable = false
     noClasses = true
-    style = "onedark"
+    style = "evergarden"
     tabWidth = 2
diff --git a/themes/qiss/layouts/partials/social/opengraph.html b/themes/qiss/layouts/partials/social/opengraph.html
index aeba122..023cc08 100644
--- a/themes/qiss/layouts/partials/social/opengraph.html
+++ b/themes/qiss/layouts/partials/social/opengraph.html
@@ -63,8 +63,8 @@
     <meta property='article:expiration_time' content='{{ .ExpiryDate.Format $dateFormat }}'/>
   {{- end -}}
 {{- else -}}
-  {{- if not .Site.LastChange.IsZero -}}
-    <meta property='og:updated_time' content='{{ .Site.LastChange.Format $dateFormat }}'/>
+  {{- if not .Site.Lastmod.IsZero -}}
+    <meta property='og:updated_time' content='{{ .Site.Lastmod.Format $dateFormat }}'/>
   {{- end -}}
 {{- end -}}