diff --git a/README.md b/README.md
index 630199b..5b3a760 100644
--- a/README.md
+++ b/README.md
@@ -356,7 +356,7 @@
 
 ## Chave PIX 
 ```
-([0-9]{14})(br.gov.bcb.(|-)pix).*(6304)([0-9a-zA-Z]{4})
+([0-9]{14,20})([bB][rR]\.[gG][oO][vV]\.[bB][cC][bB]\.[pP][iI][xX]).*(6304)([0-9a-zA-Z]{4})
 ```
 
 ## Chave PIX Aleatória
diff --git a/osint-brazuca-regex.json b/osint-brazuca-regex.json
index 9f6001a..781e3f2 100644
--- a/osint-brazuca-regex.json
+++ b/osint-brazuca-regex.json
@@ -219,7 +219,7 @@
     ],
     "pixChave": [
         {
-            "regex": "([0-9]{14})(br.gov.bcb.(|-)pix).*(6304)([0-9a-zA-Z]{4})",
+            "regex": "([0-9]{14,20})([bB][rR]\\.[gG][oO][vV]\\.[bB][cC][bB]\\.[pP][iI][xX]).*(6304)([0-9a-zA-Z]{4})",
             "description": "Chave PIX"
         }
     ],
@@ -295,4 +295,4 @@
             "description": "Número de Endereço (números ou 'S/N', 's/n', 'S/n', 's/N')"
         } 
     ]
-}
\ No newline at end of file
+}