diff --git a/api/tests/test_import_purchases.py b/api/tests/test_import_purchases.py
index ae635ce19..5243223bb 100644
--- a/api/tests/test_import_purchases.py
+++ b/api/tests/test_import_purchases.py
@@ -26,9 +26,9 @@ def setUpTestData(cls):
     def test_prix_ht_decimal(self):
         field_index = next((i for i, f in enumerate(self.schema["fields"]) if f["name"] == "prix_ht"), None)
         pattern = self.schema["fields"][field_index]["constraints"]["pattern"]
-        for VALUE_OK in ["1234", "1234.0", "1234.99", "1234,0", "1234,99"]:
+        for VALUE_OK in ["1234", "1234.0", "1234.99", "1234.99999", "1234,0", "1234,99", "1234,99999"]:
             self.assertTrue(re.match(pattern, VALUE_OK))
-        for VALUE_NOT_OK in ["", " ", "TEST", "1234.999", "1234.99.99", "1234,999", "1234,99,99"]:
+        for VALUE_NOT_OK in ["", " ", "TEST", "1234.99.99", "1234,99,99"]:
             self.assertFalse(re.match(pattern, VALUE_NOT_OK))
 
     def test_famille_produits_regex(self):
diff --git a/data/schemas/imports/achats.json b/data/schemas/imports/achats.json
index 48ea6bb76..f495c51f8 100644
--- a/data/schemas/imports/achats.json
+++ b/data/schemas/imports/achats.json
@@ -49,7 +49,7 @@
     },
     {
       "constraints": {
-        "pattern": "^\\d+([.,]\\d{1,2})?$",
+        "pattern": "^\\d+([.,]\\d+)?$",
         "required": true
       },
       "description": "",