diff --git a/.classpath b/.classpath
index 901828c..0c0fe6b 100644
--- a/.classpath
+++ b/.classpath
@@ -11,7 +11,6 @@
 	<classpathentry kind="lib" path="lib/commons-codec-1.8.jar" sourcepath="lib/commons-codec-1.8-sources.jar"/>
 	<classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.module.container"/>
 	<classpathentry kind="lib" path="lib/commons-fileupload-1.3.jar" sourcepath="lib/commons-fileupload-1.3-sources.jar"/>
-	<classpathentry kind="lib" path="lib/commons-lang3-3.1.jar" sourcepath="lib/commons-lang3-3.1-sources.jar"/>
 	<classpathentry kind="lib" path="lib/UnitTesting/hamcrest-core-1.3.jar" sourcepath="lib/UnitTesting/hamcrest-core-1.3-sources.jar"/>
 	<classpathentry kind="lib" path="lib/UnitTesting/junit-4.12.jar" sourcepath="lib/UnitTesting/junit-4.12-sources.jar"/>
 	<classpathentry kind="lib" path="lib/devinsy-strings-0.11.4.jar" sourcepath="lib/devinsy-strings-0.11.4-sources.zip"/>
@@ -27,5 +26,6 @@
 	<classpathentry kind="lib" path="lib/Logs/log4j-core-2.17.0.jar" sourcepath="lib/Logs/log4j-core-2.17.0-sources.jar"/>
 	<classpathentry kind="lib" path="lib/Logs/log4j-slf4j-impl-2.17.0.jar" sourcepath="lib/Logs/log4j-slf4j-impl-2.17.0-sources.jar"/>
 	<classpathentry kind="lib" path="lib/Logs/slf4j-api-1.7.32.jar" sourcepath="lib/Logs/slf4j-api-1.7.32-sources.jar"/>
+	<classpathentry kind="lib" path="lib/commons-lang3-3.13.0.jar" sourcepath="lib/commons-lang3-3.13.0-sources.jar"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>
diff --git a/lib/commons-lang3-3.1.jar b/lib/commons-lang3-3.1.jar
deleted file mode 100644
index a85e539..0000000
Binary files a/lib/commons-lang3-3.1.jar and /dev/null differ
diff --git a/lib/commons-lang3-3.11-sources.jar b/lib/commons-lang3-3.11-sources.jar
deleted file mode 100644
index 68cad64..0000000
Binary files a/lib/commons-lang3-3.11-sources.jar and /dev/null differ
diff --git a/lib/commons-lang3-3.11.jar b/lib/commons-lang3-3.11.jar
deleted file mode 100644
index bbaa8a6..0000000
Binary files a/lib/commons-lang3-3.11.jar and /dev/null differ
diff --git a/lib/commons-lang3-3.13.0-sources.jar b/lib/commons-lang3-3.13.0-sources.jar
new file mode 100644
index 0000000..f65c4e4
Binary files /dev/null and b/lib/commons-lang3-3.13.0-sources.jar differ
diff --git a/lib/commons-lang3-3.13.0.jar b/lib/commons-lang3-3.13.0.jar
new file mode 100644
index 0000000..891540f
Binary files /dev/null and b/lib/commons-lang3-3.13.0.jar differ