diff --git a/core-java-modules/core-java-string-operations-4/pom.xml b/core-java-modules/core-java-string-operations-4/pom.xml
index cc755cf470..5cd1bd3c56 100644
--- a/core-java-modules/core-java-string-operations-4/pom.xml
+++ b/core-java-modules/core-java-string-operations-4/pom.xml
@@ -29,6 +29,11 @@
             <artifactId>commons-lang3</artifactId>
             <version>${apache-commons-lang3.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-text</artifactId>
+            <version>${apache-commons-text.version}</version>
+        </dependency>
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
@@ -56,6 +61,7 @@
         <opencsv.version>4.1</opencsv.version>
         <spring-core.version>5.3.13</spring-core.version>
         <apache-commons-lang3.version>3.12.0</apache-commons-lang3.version>
+        <apache-commons-text.version>1.10.0</apache-commons-text.version>
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-string-operations-4/src/test/java/com/baeldung/namedformatting/NamedFormatterUnitTest.java b/core-java-modules/core-java-string-operations-4/src/test/java/com/baeldung/namedformatting/NamedFormatterUnitTest.java
index 843aaac0b5..a278041b8b 100644
--- a/core-java-modules/core-java-string-operations-4/src/test/java/com/baeldung/namedformatting/NamedFormatterUnitTest.java
+++ b/core-java-modules/core-java-string-operations-4/src/test/java/com/baeldung/namedformatting/NamedFormatterUnitTest.java
@@ -1,6 +1,6 @@
 package com.baeldung.namedformatting;
 
-import org.apache.commons.text.StrSubstitutor;
+import org.apache.commons.text.StringSubstitutor;
 import org.junit.jupiter.api.Test;
 
 import java.util.HashMap;
@@ -12,20 +12,20 @@ class NamedFormatterUnitTest {
     private static final String TEMPLATE = "Text: [${text}] Number: [${number}] Text again: [${text}]";
 
     @Test
-    void givenTemplateWithNamedParam_whenCallingCommonsTextStrSubstitutor_shouldGetExpectedResult() {
+    void givenTemplateWithNamedParam_whenCallingCommonsTextStringSubstitutor_shouldGetExpectedResult() {
         Map<String, Object> params = new HashMap<>();
         params.put("text", "It's awesome!");
         params.put("number", 42);
-        String result = StrSubstitutor.replace(TEMPLATE, params, "${", "}");
+        String result = StringSubstitutor.replace(TEMPLATE, params, "${", "}");
         assertThat(result).isEqualTo("Text: [It's awesome!] Number: [42] Text again: [It's awesome!]");
     }
 
     @Test
-    void givenTemplateWithNamedParam_whenCallingCommonsTextStrSubstitutorWithParameterNames_shouldNotWorkAsExpected() {
+    void givenTemplateWithNamedParam_whenCallingCommonsTextStringSubstitutorWithParameterNames_shouldNotWorkAsExpected() {
         Map<String, Object> params = new HashMap<>();
         params.put("text", "'${number}' is a placeholder.");
         params.put("number", 42);
-        String result = StrSubstitutor.replace(TEMPLATE, params, "${", "}");
+        String result = StringSubstitutor.replace(TEMPLATE, params, "${", "}");
 
         assertThat(result).isNotEqualTo("Text: ['${number}' is a placeholder.] Number: [42] Text again: ['${number}' is a placeholder.]");