diff --git a/calibre-plugin/plugin-defaults.ini b/calibre-plugin/plugin-defaults.ini
index af482e1c..71df57ba 100644
--- a/calibre-plugin/plugin-defaults.ini
+++ b/calibre-plugin/plugin-defaults.ini
@@ -869,7 +869,9 @@ description_limit:500
 ## there are at least this many threadmarks.  A number of older
 ## threads have a single threadmark to an 'index' post.  Set to 1 to
 ## use threadmarks whenever they exist.
-minimum_threadmarks:2
+## Update Jun2025: Default changed to 1, index posts are not a common
+## thing anymore.
+minimum_threadmarks:1
 
 ## When 'first post' (or post URL) is being added as a chapter, give
 ## the chapter this title.
diff --git a/fanficfare/defaults.ini b/fanficfare/defaults.ini
index 5e93e8e8..b372714f 100644
--- a/fanficfare/defaults.ini
+++ b/fanficfare/defaults.ini
@@ -859,7 +859,9 @@ description_limit:500
 ## there are at least this many threadmarks.  A number of older
 ## threads have a single threadmark to an 'index' post.  Set to 1 to
 ## use threadmarks whenever they exist.
-minimum_threadmarks:2
+## Update Jun2025: Default changed to 1, index posts are not a common
+## thing anymore.
+minimum_threadmarks:1
 
 ## When 'first post' (or post URL) is being added as a chapter, give
 ## the chapter this title.