diff --git a/migration/21.03/210321.sql b/migration/21.03/210321.sql
index 4d83f3d2d6c170adecbb0f2b90929d697a4d3da4..4c4c7d0b95b72207f90111e83c1dcaead0c22eee 100644
--- a/migration/21.03/210321.sql
+++ b/migration/21.03/210321.sql
@@ -6,12 +6,29 @@
 --                                                                          --
 -- *************************************************************************--
 
+DO $$
+DECLARE
+  last_chrono text;
+  chrono record;
+  chrono_id_seq text;
+BEGIN	
+	FOR chrono IN (SELECT id, param_value_int as value FROM parameters WHERE id LIKE 'chrono_%') LOOP
+		chrono_id_seq := CONCAT(chrono.id, '_seq');
+		
+		IF NOT EXISTS (SELECT 0 FROM pg_class where relname = chrono_id_seq ) THEN
+		  EXECUTE 'CREATE SEQUENCE ' || chrono_id_seq || ' INCREMENT 1 MINVALUE 1 MAXVALUE 9223372036854775807 START 1 CACHE 1;';
+		END IF;
+		EXECUTE 'SELECT setVal(''' || chrono_id_seq ||''',' || chrono.value ||',false)';
+   	END LOOP;
+END
+$$;
+
 CREATE OR REPLACE FUNCTION public.increase_chrono(chrono_id_seq text, chrono_id_name text) returns table (chrono_id bigint) as $$
 DECLARE
     retval bigint;
 BEGIN
     IF NOT EXISTS (SELECT 0 FROM pg_class where relname = chrono_id_seq ) THEN
-      EXECUTE 'CREATE SEQUENCE ' || chrono_id_seq || ' INCREMENT 1 MINVALUE 100 MAXVALUE 9223372036854775807 START 100 CACHE 1;';
+      EXECUTE 'CREATE SEQUENCE ' || chrono_id_seq || ' INCREMENT 1 MINVALUE 1 MAXVALUE 9223372036854775807 START 1 CACHE 1;';
     END IF;
     IF NOT EXISTS (SELECT 0 FROM parameters where id = chrono_id_name ) THEN
       EXECUTE 'INSERT INTO parameters (id, param_value_int) VALUES ( ''' || chrono_id_name || ''', 1)';