diff --git a/core/dovecot/conf/dovecot.conf b/core/dovecot/conf/dovecot.conf
index 0539ac68..906b0e30 100644
--- a/core/dovecot/conf/dovecot.conf
+++ b/core/dovecot/conf/dovecot.conf
@@ -65,9 +65,9 @@ plugin {
   fts_enforced = yes
   fts_autoindex_exclude = \Trash
   fts_autoindex_exclude1 = \Junk
-  fts_filters = normalizer-icu stopwords
-  fts_filters_en = lowercase english-possessive stopwords
-  fts_filters_fr = lowercase contractions stopwords
+  fts_filters = normalizer-icu snowball stopwords
+  fts_filters_en = lowercase snowball english-possessive stopwords
+  fts_filters_fr = lowercase snowball contractions stopwords
   fts_header_excludes = Received DKIM-* ARC-* X-* x-* Comments Delivered-To Return-Path Authentication-Results Message-ID References In-Reply-To Thread-* Accept-Language Content-* MIME-Version
   {% if FULL_TEXT_SEARCH_ATTACHMENTS %}
   fts_tika = http://{{ FTS_ATTACHMENTS_ADDRESS }}:9998/tika/
diff --git a/towncrier/newsfragments/2977.misc b/towncrier/newsfragments/2977.misc
new file mode 100644
index 00000000..afc9c97b
--- /dev/null
+++ b/towncrier/newsfragments/2977.misc
@@ -0,0 +1 @@
+Improve FTS by adding the snowball filter. This should significantly cut down the size of indexes. You may want to re-index after upgrading.