diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 589b5f34b..12360845c 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -14,7 +14,6 @@
 #Config for anallitycs
 -keepattributes *Annotation*
 -keepattributes SourceFile,LineNumberTable
--renamesourcefileattribute SourceFile
 -keep class com.crashlytics.** {*;}
 -keep public class * extends java.lang.Exception
 -dontwarn com.crashlytics.**
diff --git a/build.gradle b/build.gradle
index d2f68da07..26becfc7c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '1.3.11'
+    ext.kotlin_version = '1.3.20'
     repositories {
         mavenCentral()
         google()