diff --git a/swh/indexer/sql/upgrades/137.sql b/swh/indexer/sql/upgrades/137.sql
index a7d69f1..152ae0e 100644
--- a/swh/indexer/sql/upgrades/137.sql
+++ b/swh/indexer/sql/upgrades/137.sql
@@ -1,23 +1,19 @@
 -- SWH Indexer DB schema upgrade
 -- from_version: 136
 -- to_version: 137
 -- description: Drop content_language and content_ctags tables and related functions
 
-insert into dbversion(version, release, description)
-      values(137, now(), 'Work In Progress');
+drop function if exists swh_content_language_add;
+drop function if exists swh_mktemp_content_language();
+drop function if exists swh_mktemp_content_ctags();
+drop function if exists swh_content_ctags_add();
+drop function if exists swh_content_ctags_search;
 
-drop function swh_content_language_add;
-drop function swh_mktemp_content_language();
-drop function swh_mktemp_content_ctags();
-drop function swh_content_ctags_add();
-drop function swh_content_ctags_search;
+drop type if exists content_ctags_signature;
 
-drop index content_language_pkey;
+drop table if exists content_language;
+drop table if exists content_ctags;
 
-drop table content_language;
-drop table content_ctags;
-
-drop type languages;
-drop type ctags_languages;
-drop type content_ctags_signature;
+drop type if exists languages;
+drop type if exists ctags_languages;