diff --git a/core-java/README.md b/core-java/README.md
index 63e3748ec6..0861ee7c5e 100644
--- a/core-java/README.md
+++ b/core-java/README.md
@@ -84,4 +84,5 @@
 - [Guide to java.util.concurrent.Locks](http://www.baeldung.com/java-concurrent-locks)
 - [Java Primitive Conversions](http://www.baeldung.com/java-primitive-conversions)
 - [Java Money and the Currency API](http://www.baeldung.com/java-money-and-currency)
+- [Guide to Java 8 Comparator.comparing()](http://www.baeldung.com/java-8-comparator-comparing)
 
diff --git a/kotlin/README.md b/kotlin/README.md
index ceebde4573..309aafa4b6 100644
--- a/kotlin/README.md
+++ b/kotlin/README.md
@@ -2,3 +2,4 @@
 
 - [Introduction to the Kotlin Language](http://www.baeldung.com/kotlin)
 - [A guide to the “when{}” block in Kotlin](http://www.baeldung.com/kotlin-when)
+- [Comprehensive Guide to Null Safety in Kotlin](http://www.baeldung.com/kotlin-null-safety)