diff --git a/data/raw/pseudo_ibans.yml b/data/raw/pseudo_ibans.yml
index f8cc42d..bea632a 100644
--- a/data/raw/pseudo_ibans.yml
+++ b/data/raw/pseudo_ibans.yml
@@ -41,11 +41,11 @@ US:
   :bank_code_length: 9
   :branch_code_length: 0
   :account_number_length: !ruby/range
-    begin: 1
+    begin: 4
     end: 17
     excl: false
   :bank_code_format: "\\d{9}"
-  :account_number_format: "_*\\d{1,17}"
+  :account_number_format: "_*\\d{4,17}"
   :national_id_length: 9
   :pseudo_iban_bank_code_length: 9
   :pseudo_iban_branch_code_length: 0
diff --git a/data/structures.yml b/data/structures.yml
index 8255041..5e9bc82 100644
--- a/data/structures.yml
+++ b/data/structures.yml
@@ -1521,11 +1521,11 @@ US:
   :bank_code_length: 9
   :branch_code_length: 0
   :account_number_length: !ruby/range
-    begin: 1
+    begin: 4
     end: 17
     excl: false
   :bank_code_format: "\\d{9}"
-  :account_number_format: _*\d{1,17}
+  :account_number_format: _*\d{4,17}
   :national_id_length: 9
   :pseudo_iban_bank_code_length: 9
   :pseudo_iban_branch_code_length: 0
diff --git a/lib/ibandit/version.rb b/lib/ibandit/version.rb
index b8658f2..90f3a32 100644
--- a/lib/ibandit/version.rb
+++ b/lib/ibandit/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Ibandit
-  VERSION = "1.15.0"
+  VERSION = "1.16.0"
 end