diff --git a/conf/app.src b/conf/app.src
index 38bebb7..4b8b457 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/tootsuite/mastodon/archive/refs/tags/v4.2.3.tar.gz
-SOURCE_SUM=328ced93a073e775c355956ea298f5796be5af7f584442fdd8e65190117c631f
+SOURCE_URL=https://github.com/tootsuite/mastodon/archive/refs/tags/v4.2.5.tar.gz
+SOURCE_SUM=7d7b03d2500fc4146a9849a5569a1f5ca9ae8d8a0c1e52c9c72a323a245ce8ce
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true