diff --git a/app/src/main/java/com/gh/common/util/PackageUtils.java b/app/src/main/java/com/gh/common/util/PackageUtils.java
index 976da13a9a..e7280a1eb1 100644
--- a/app/src/main/java/com/gh/common/util/PackageUtils.java
+++ b/app/src/main/java/com/gh/common/util/PackageUtils.java
@@ -301,7 +301,7 @@ public class PackageUtils {
             Signature[] signatures = packageInfo.signatures;
 
             // 使用幸运破解器破解安卓签名认证可能会出现不用签名也能装的情况，这里有可能是空的
-            if (signatures[0] != null) {
+            if (signatures.length > 0 && signatures[0] != null) {
                 return parseSignature(signatures[0].toByteArray());
             } else {
                 return new String[]{null, null};