diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4735ea573..59dab244f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ## [21.4] (unreleased)
 
 ### Added
-- Extend GMP for extended severities [#1326](https://github.com/greenbone/gvmd/pull/1326) [#1329](https://github.com/greenbone/gvmd/pull/1329) [#1359](https://github.com/greenbone/gvmd/pull/1359) [#1371](https://github.com/greenbone/gvmd/pull/1371) [#1477](https://github.com/greenbone/gvmd/pull/1477)
+- Extend GMP for extended severities [#1326](https://github.com/greenbone/gvmd/pull/1326) [#1329](https://github.com/greenbone/gvmd/pull/1329) [#1359](https://github.com/greenbone/gvmd/pull/1359) [#1371](https://github.com/greenbone/gvmd/pull/1371) [#1477](https://github.com/greenbone/gvmd/pull/1477) [#1488](https://github.com/greenbone/gvmd/pull/1488)
 - Parameter `--db-user` to set a database user [#1327](https://github.com/greenbone/gvmd/pull/1327)
 - Add `allow_simultaneous_ips` field for targets [#1346](https://github.com/greenbone/gvmd/pull/1346) [#1396](https://github.com/greenbone/gvmd/pull/1396)
 - Speed up GET_VULNS [#1354](https://github.com/greenbone/gvmd/pull/1354) [#1355](https://github.com/greenbone/gvmd/pull/1354)
diff --git a/src/manage_migrators.c b/src/manage_migrators.c
index 66cc93bf9..068df609c 100644
--- a/src/manage_migrators.c
+++ b/src/manage_migrators.c
@@ -2630,7 +2630,7 @@ migrate_241_to_242 ()
   /* Change the vt_severities table to a CVSS score */
   sql ("ALTER TABLE vt_severities ALTER COLUMN score"
        " SET DATA TYPE double precision;");
-  sql ("UPDATE vt_severities SET score = round(score / 10.0, 1);");
+  sql ("UPDATE vt_severities SET score = round((score / 10.0)::numeric, 1);");
 
   /* Set the database version to 242. */