diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b3fee3ef7..4168df56a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -56,3 +56,10 @@ jobs:
         with:
           name: x86-${{ github.sha }}
           path: app/build/outputs/apk/release/app-x86-release.apk
+
+      - name: Update mapping
+        uses: actions/upload-artifact@v3
+        with:
+          name: mapping-${{ github.sha }}
+          path: app/build/outputs/mapping/release/mapping.txt
+          retention-days: 5
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 40dc408b0..6d916e3ea 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -16,8 +16,8 @@
 
 -keep class androidx.viewpager.widget.ViewPager$LayoutParams { int position; }
 
--renamesourcefileattribute
+-keepattributes LineNumberTable,SourceFile
+-renamesourcefileattribute SourceFile
 -repackageclasses
 -allowaccessmodification
--mergeinterfacesaggressively
 -overloadaggressively