diff -u b/core/modules/pgsql/src/Driver/Database/pgsql/Install/Tasks.php b/core/modules/pgsql/src/Driver/Database/pgsql/Install/Tasks.php
--- b/core/modules/pgsql/src/Driver/Database/pgsql/Install/Tasks.php
+++ b/core/modules/pgsql/src/Driver/Database/pgsql/Install/Tasks.php
@@ -298,8 +298,12 @@
       }
       $connection->query('SELECT pg_advisory_unlock(1)');
 
+      /**
+       * @todo Remove this if-statement in Drupal 11 when the minimum required version for
+       * PostgreSQL becomes 14.
+       */
       // If we are running PostgreSQL >= 13, enable the pg_trgm extension.
-      if (version_compare($connection->version(), 13, '>=')) {
+      if (version_compare($connection->version(), '13.0.0', '>=')) {
         $connection->query('CREATE EXTENSION IF NOT EXISTS pg_trgm');
       }