diff --git a/hz-pm-api/src/main/java/com/hz/pm/api/common/util/PreviewFileIdEncryptUtil.java b/hz-pm-api/src/main/java/com/hz/pm/api/common/util/PreviewFileIdEncryptUtil.java
index 435c52c..b350f05 100644
--- a/hz-pm-api/src/main/java/com/hz/pm/api/common/util/PreviewFileIdEncryptUtil.java
+++ b/hz-pm-api/src/main/java/com/hz/pm/api/common/util/PreviewFileIdEncryptUtil.java
@@ -17,7 +17,7 @@ public class PreviewFileIdEncryptUtil {
     private PreviewFileIdEncryptUtil() {
     }
 
-    private static final String KEY_BASE64 = "ffbTIYYplRaDcNnrP3dm99s8jCGls4bBqJPnFUo44ik=";
+    private static final String KEY_BASE64 = "CUMEAixpClgj7CgkjVK/YQ==";
 
     public static String encryptFileId(String fileId) {
         AES aes = SecureUtil.aes(Base64.decode(KEY_BASE64));