diff --git a/android/app/proguard-rules.pro b/android/app/proguard-rules.pro
index 57a1654a0..451c2929c 100644
--- a/android/app/proguard-rules.pro
+++ b/android/app/proguard-rules.pro
@@ -90,4 +90,7 @@
 -dontwarn com.google.appengine.**
 -dontwarn javax.servlet.**
 
-
+# Crashlytics
+-keepattributes *Annotation*
+-keepattributes SourceFile,LineNumberTable
+-keep public class * extends java.lang.Exception