diff --git a/.classpath b/.classpath
index 4ee2c21..8b2d914 100644
--- a/.classpath
+++ b/.classpath
@@ -14,8 +14,8 @@
 	<classpathentry kind="lib" path="lib/Logs/slf4j-api-1.7.25.jar" sourcepath="lib/Logs/slf4j-api-1.7.25-sources.jar"/>
 	<classpathentry kind="lib" path="lib/Logs/slf4j-log4j12-1.7.25.jar" sourcepath="lib/Logs/slf4j-log4j12-1.7.25-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/commons-lang3-3.11.jar" sourcepath="lib/commons-lang3-3.11-sources.jar"/>
 	<classpathentry kind="lib" path="lib/commons-text-1.9.jar" sourcepath="lib/commons-text-1.9-sources.jar"/>
 	<classpathentry kind="lib" path="lib/devinsy-strings-0.11.0.jar" sourcepath="lib/devinsy-strings-0.11.0-sources.zip"/>
+	<classpathentry kind="lib" path="lib/commons-lang3-3.12.0.jar" sourcepath="lib/commons-lang3-3.12.0-sources.jar"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>
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-lang3-3.12.0-sources.jar b/lib/commons-lang3-3.12.0-sources.jar
new file mode 100644
index 0000000..bad8863
Binary files /dev/null and b/lib/commons-lang3-3.12.0-sources.jar differ
diff --git a/lib/commons-lang3-3.12.0.jar b/lib/commons-lang3-3.12.0.jar
new file mode 100644
index 0000000..4d434a2
Binary files /dev/null and b/lib/commons-lang3-3.12.0.jar differ