diff --git a/core-kotlin-modules/core-kotlin-advanced-3/README.md b/core-kotlin-modules/core-kotlin-advanced-3/README.md
index 5b434f754..61aaccc71 100644
--- a/core-kotlin-modules/core-kotlin-advanced-3/README.md
+++ b/core-kotlin-modules/core-kotlin-advanced-3/README.md
@@ -2,4 +2,5 @@
 - [Passing a Class to a Function in Kotlin](https://www.baeldung.com/kotlin/class-function-parameter)
 - [HTML Builder in Kotlin](https://www.baeldung.com/kotlin/html-generation)
 - [Passing a Type to Generic Method in Kotlin](https://www.baeldung.com/kotlin/generic-methods)
+- [Getting a Kotlin KClass from a Package Class Name String](https://www.baeldung.com/kotlin/kclass-fqn-string)
 - More articles: [[<-- prev]](../core-kotlin-advanced-2)
diff --git a/core-kotlin-modules/core-kotlin-concurrency-3/README.md b/core-kotlin-modules/core-kotlin-concurrency-3/README.md
index 438b38f98..6a0e6e71d 100644
--- a/core-kotlin-modules/core-kotlin-concurrency-3/README.md
+++ b/core-kotlin-modules/core-kotlin-concurrency-3/README.md
@@ -11,4 +11,6 @@ This module contains articles about concurrency in Kotlin.
 - [Async Exception Handling in Kotlin](https://www.baeldung.com/kotlin/coroutine-exception-handling)
 - [Combining Multiple Kotlin Flows](https://www.baeldung.com/kotlin/combining-multiple-flows)
 - [Merging Kotlin Flows](https://www.baeldung.com/kotlin/flow-merging)
+- [Avoiding the ConcurrentModificationException in Kotlin](https://www.baeldung.com/kotlin/concurrent-modification-exception)
+- [Convert RxJava Single to Kotlin Coroutine Deferred](https://www.baeldung.com/kotlin/rxjava-single-coroutine-deferred)
 - More articles: [[<-- prev]](../core-kotlin-concurrency-2)
diff --git a/core-kotlin-modules/core-kotlin-files/README.md b/core-kotlin-modules/core-kotlin-files/README.md
index e6ebf6d1e..992f19ccd 100644
--- a/core-kotlin-modules/core-kotlin-files/README.md
+++ b/core-kotlin-modules/core-kotlin-files/README.md
@@ -4,3 +4,4 @@
 - [Kotlin Path API](https://www.baeldung.com/kotlin/kotlin-path-api)
 - [Delete Files and Subdirectories in a Directory in Kotlin](https://www.baeldung.com/kotlin/delete-directories-with-contents)
 - [Convert File to Byte Array in Kotlin](https://www.baeldung.com/kotlin/file-byte-array)
+- [How to Create a Temporary File in Kotlin](https://www.baeldung.com/kotlin/temp-file)
diff --git a/core-kotlin-modules/core-kotlin-strings-5/README.md b/core-kotlin-modules/core-kotlin-strings-5/README.md
index 00bb06073..01198768f 100644
--- a/core-kotlin-modules/core-kotlin-strings-5/README.md
+++ b/core-kotlin-modules/core-kotlin-strings-5/README.md
@@ -6,4 +6,5 @@ This module contains articles about core Kotlin strings.
 
 - [Extract Numbers From a String in Kotlin](https://www.baeldung.com/kotlin/string-extract-numeric-value)
 - [Parse String With Thousands Separator in Kotlin](https://www.baeldung.com/kotlin/string-parse-thousands-separator)
+- [Guide to the HexFormat API](https://www.baeldung.com/kotlin/hexadecimal-string-parse)
 - - More articles: [[<-- prev]](../core-kotlin-strings-4)