diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 6649b5d6a..0cd67ca85 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -46,4 +46,9 @@
 
 # Keep logback classes
 -keep class ch.qos.** { *; }
--keep class org.slf4j.** { *; }
\ No newline at end of file
+-keep class org.slf4j.** { *; }
+
+# Keep data classes
+-keepclassmembers,allowobfuscation class * {
+  @com.google.gson.annotations.SerializedName <fields>;
+}
\ No newline at end of file