diff --git a/NEWS b/NEWS
index 8ffa41dd2..fabee9234 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,8 @@
  * #516: Fix handling of TERM signal to exit borgmatic, not just forward the signal to Borg.
  * #517: Fix borgmatic exit code (so it's zero) when initial Borg calls fail but later retries
    succeed.
+ * Change Healthchecks logs truncation size from 10k bytes to 100k bytes, corresponding to that
+   same change on Healthchecks.io.
 
 1.5.24
  * #431: Add "working_directory" option to support source directories with relative paths.
diff --git a/borgmatic/hooks/healthchecks.py b/borgmatic/hooks/healthchecks.py
index 86986ef33..119662007 100644
--- a/borgmatic/hooks/healthchecks.py
+++ b/borgmatic/hooks/healthchecks.py
@@ -13,7 +13,7 @@ MONITOR_STATE_TO_HEALTHCHECKS = {
 }
 
 PAYLOAD_TRUNCATION_INDICATOR = '...\n'
-PAYLOAD_LIMIT_BYTES = 10 * 1024 - len(PAYLOAD_TRUNCATION_INDICATOR)
+PAYLOAD_LIMIT_BYTES = 100 * 1024 - len(PAYLOAD_TRUNCATION_INDICATOR)
 
 
 class Forgetful_buffering_handler(logging.Handler):