diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index d3e004db..df941012 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -26,3 +26,8 @@
 -keepnames class org.torproject.arti.**
 -dontwarn info.guardianproject.arti.**
 -dontwarn org.torproject.arti.**
+
+# Fix for AbstractMethodError on API < 29 where LocationListener methods are abstract
+-keepclassmembers class * implements android.location.LocationListener {
+    public <methods>;
+}