diff --git a/update/2_4_52.sql b/update/2_4_52.sql
index ee9857833..7dcf00951 100644
--- a/update/2_4_52.sql
+++ b/update/2_4_52.sql
@@ -65,10 +65,8 @@ CREATE TABLE `an_sedi_tecnici` (
     `idsede` INT NOT NULL ,  
     `idtecnico` INT NOT NULL ,  
     `data_inizio` DATE NULL DEFAULT NULL,
-    `data_fine` DATE NULL DEFAULT NULL,
-    `created_at` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP , 
-    `updated_at` TIMESTAMP on UPDATE CURRENT_TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP , 
-PRIMARY KEY (`id`)) ENGINE = InnoDB; 
+    `data_fine` DATE NULL DEFAULT NULL
+PRIMARY KEY (`id`)); 
 
 -- Aggiunta indici
 ALTER TABLE `an_sedi_tecnici` 
diff --git a/update/2_4_55.sql b/update/2_4_55.sql
index a02a0db6d..78d7e95da 100644
--- a/update/2_4_55.sql
+++ b/update/2_4_55.sql
@@ -578,4 +578,8 @@ WHERE
 HAVING
     2=2
 ORDER BY
-    `id`, `nome` ASC" WHERE `name` = 'Utenti e permessi';
\ No newline at end of file
+    `id`, `nome` ASC" WHERE `name` = 'Utenti e permessi';
+
+-- Fix per errore creazione tabella an_sedi_tecnici v. 2.4.52
+ALTER TABLE `an_sedi_tecnici`  CHANGE `updated_at` `updated_at` TIMESTAMP NULL on update CURRENT_TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP;
+ALTER TABLE `an_sedi_tecnici`  CHANGE `created_at` `created_at` TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP;
\ No newline at end of file