diff --git a/proguard.flags b/proguard.flags
index 759f2d4..44f6ccd 100644
--- a/proguard.flags
+++ b/proguard.flags
@@ -35,13 +35,13 @@
 -keep public class * extends android.content.ContentProvider
 -keep public class * extends android.app.backup.BackupAgentHelper
 -keep public class * extends android.preference.Preference
--keep public class * extends android.support.v4.app.Fragment
+-keep public class * extends androidx.fragment.app.Fragment
 -keep public class com.android.vcard.* { *; }
 
--keep class android.support.v4.* { *; }
--keep class android.support.v4.*.* { *; }
--keep class android.support.v7.* { *; }
--keep class android.support.v7.*.* { *; }
+-keep class androidx.core.* { *; }
+-keep class androidx.core.*.* { *; }
+-keep class androidx.appcompat.* { *; }
+-keep class androidx.appcompat.*.* { *; }
 
 # Keep rastermill classes that need to be accessed from native code (JNI)
 -keep class android.support.rastermill.** { *; }