diff --git a/content/2023/new-members-2023-EN.md b/content/2023/new-members-2023-EN.md
index 25e1a2ff..6ccc7ce9 100644
--- a/content/2023/new-members-2023-EN.md
+++ b/content/2023/new-members-2023-EN.md
@@ -2,9 +2,9 @@
 Title: New Members
 Author: Varia
 Date: 2023-06-01
-Category: membership
-Tags: new members, membership, open call
-Slug: new-members
+category: membership
+tags: new members, membership, open call
+slug: new-members
 lang: en
 event_start: 2023-05-20
 event_duration: 1h
diff --git a/content/2023/new-members-2023-NL.md b/content/2023/new-members-2023-NL.md
index e4afd041..4eabbd57 100644
--- a/content/2023/new-members-2023-NL.md
+++ b/content/2023/new-members-2023-NL.md
@@ -2,9 +2,9 @@
 Title: New Members
 Author: Varia
 Date: 2023-06-01
-Category: membership
-Tags: new members, membership, open call
-Slug: new-members
+category: membership
+tags: new members, membership, open call
+slug: new-members
 lang: nl
 event_start: 2023-05-20
 event_duration: 1h