diff --git a/src/main/java/org/apache/commons/io/function/Uncheck.java b/src/main/java/org/apache/commons/io/function/Uncheck.java
index 89ca0d4..e18937f 100644
--- a/src/main/java/org/apache/commons/io/function/Uncheck.java
+++ b/src/main/java/org/apache/commons/io/function/Uncheck.java
@@ -25,7 +25,7 @@
  *
  * @since 2.12.0
  */
-public class Uncheck {
+public final class Uncheck {
 
     /**
      * Accepts an IO consumer with the given arguments.