diff --git a/DIRECTORY.md b/DIRECTORY.md
index 71d4b7d013cb..46e1d73a7d2a 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -346,6 +346,7 @@
 - 📄 [Point](src/main/java/com/thealgorithms/geometry/Point.java)
 - 📁 **graph**
 - 📄 [ConstrainedShortestPath](src/main/java/com/thealgorithms/graph/ConstrainedShortestPath.java)
+ - 📄 [HopcroftKarp](src/main/java/com/thealgorithms/graph/HopcroftKarp.java)
 - 📄 [StronglyConnectedComponentOptimized](src/main/java/com/thealgorithms/graph/StronglyConnectedComponentOptimized.java)
 - 📄 [TravelingSalesman](src/main/java/com/thealgorithms/graph/TravelingSalesman.java)
 - 📁 **greedyalgorithms**
@@ -1051,6 +1052,7 @@
 - 📄 [PointTest](src/test/java/com/thealgorithms/geometry/PointTest.java)
 - 📁 **graph**
 - 📄 [ConstrainedShortestPathTest](src/test/java/com/thealgorithms/graph/ConstrainedShortestPathTest.java)
+ - 📄 [HopcroftKarpTest](src/test/java/com/thealgorithms/graph/HopcroftKarpTest.java)
 - 📄 [StronglyConnectedComponentOptimizedTest](src/test/java/com/thealgorithms/graph/StronglyConnectedComponentOptimizedTest.java)
 - 📄 [TravelingSalesmanTest](src/test/java/com/thealgorithms/graph/TravelingSalesmanTest.java)
 - 📁 **greedyalgorithms**
</div><div class="naked_ctrl">
<form action="/index.cgi/contrast" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://patch-diff.githubusercontent.com/raw/TheAlgorithms/Java/pull/6468.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://patch-diff.githubusercontent.com/raw/TheAlgorithms/Java/pull/6468.diff" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast" selected="selected">配色反転</option>
<option value="larger-text">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>