diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 585bd06b..85c149fe 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -81,10 +81,10 @@
 -keep class org.simpleframework.xml.core.** { *; }
 -keep class org.simpleframework.xml.util.** { *; }
 
--keepattributes ElementArray, ElementList, Root
+-keepattributes ElementList, Root
 
--keepclassmembers class * {
-    @org.simpleframework.xml.* *;
+-keepclasseswithmembers class * {
+    @org.simpleframework.xml.* <fields>;
 }
 
 # Chart Engine