diff --git a/algorithms-miscellaneous-3/src/main/java/com/baeldung/algorithms/smallestinteger/SmallestMissingPositiveInteger.java b/algorithms-miscellaneous-4/src/main/java/com/baeldung/algorithms/smallestinteger/SmallestMissingPositiveInteger.java
similarity index 100%
rename from algorithms-miscellaneous-3/src/main/java/com/baeldung/algorithms/smallestinteger/SmallestMissingPositiveInteger.java
rename to algorithms-miscellaneous-4/src/main/java/com/baeldung/algorithms/smallestinteger/SmallestMissingPositiveInteger.java
diff --git a/algorithms-miscellaneous-3/src/test/java/com/baeldung/algorithms/smallestinteger/SmallestMissingPositiveIntegerUnitTest.java b/algorithms-miscellaneous-4/src/test/java/com/baeldung/algorithms/smallestinteger/SmallestMissingPositiveIntegerUnitTest.java
similarity index 100%
rename from algorithms-miscellaneous-3/src/test/java/com/baeldung/algorithms/smallestinteger/SmallestMissingPositiveIntegerUnitTest.java
rename to algorithms-miscellaneous-4/src/test/java/com/baeldung/algorithms/smallestinteger/SmallestMissingPositiveIntegerUnitTest.java