diff --git a/resources/subdivision/KR-b12af5fb75baa6bba99b888075d873df.json b/resources/subdivision/KR-b12af5fb75baa6bba99b888075d873df.json
index fa15fc7a..63b89e9e 100644
--- a/resources/subdivision/KR-b12af5fb75baa6bba99b888075d873df.json
+++ b/resources/subdivision/KR-b12af5fb75baa6bba99b888075d873df.json
@@ -16,7 +16,7 @@
 		},
 		"Gimje-si": {
 			"local_code": "김제시",
-			"postal_code_pattern": "543"
+			"postal_code_pattern": "54[34]"
 		},
 		"Namwon-si": {
 			"local_code": "남원시",