diff --git a/banque.md b/banque.md
index 1505e1f..b6e4501 100644
--- a/banque.md
+++ b/banque.md
@@ -108,9 +108,8 @@ erDiagram
 
   account {
     bigint id PK
-    date creation_date
+    timestamp creation_date
     decimal balance
-    text currency_code FK
   }
 
   account_holder {
@@ -146,6 +145,11 @@ erDiagram
     date creation_date
   }
 
+  bank {
+    bigint id PK
+    text name
+  }
+
   holder {
     bigint id PK
     timestamp creation_date
@@ -154,7 +158,7 @@ erDiagram
 
   account {
     bigint id PK
-    date creation_date
+    timestamp creation_date
     decimal balance
     text currency_code FK
   }
@@ -168,7 +172,7 @@ erDiagram
   operation {
     bigint id PK
     bigint transaction_id FK
-    text account FK
+    bigint account_id FK
     decimal amount
     text direction
   }
@@ -347,7 +351,7 @@ erDiagram
 
   account {
     bigint id PK
-    date creation_date
+    timestamp creation_date
     decimal balance
     text currency_code FK
   }