diff --git a/alstjr7437/README.md b/alstjr7437/README.md
index d2270eb1..91271072 100644
--- a/alstjr7437/README.md
+++ b/alstjr7437/README.md
@@ -26,4 +26,4 @@
 | 22차시 | 2024.04.13 |  BFS  | <a href="https://www.acmicpc.net/problem/11724">연결 요소의 개수</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-6/pull/78 |
 | 23차시 | 2024.05.01 |  큐  | <a href="https://school.programmers.co.kr/learn/courses/30/lessons/42587">프로세스</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-6/pull/79 |
 | 24차시 | 2024.05.14 |  BFS  | <a href="https://www.acmicpc.net/problem/7576">토마토</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/187 |
-| 26차시 | 2024.05.22 |  브루트포스  | <a href="https://www.acmicpc.net/problem/14500">테트로미노</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/196 |
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+| 26차시 | 2024.05.22 |  정렬  | <a href="https://school.programmers.co.kr/learn/courses/30/lessons/42747">H-Index</a> | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/196 |
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diff --git "a/alstjr7437/\353\270\214\353\243\250\355\212\270\355\217\254\354\212\244/\355\205\214\355\212\270\353\241\234\353\257\270\353\205\270.py" "b/alstjr7437/\353\270\214\353\243\250\355\212\270\355\217\254\354\212\244/\355\205\214\355\212\270\353\241\234\353\257\270\353\205\270.py"
deleted file mode 100644
index e69de29b..00000000
diff --git "a/alstjr7437/\354\240\225\353\240\254/H-Index.py" "b/alstjr7437/\354\240\225\353\240\254/H-Index.py"
new file mode 100644
index 00000000..425c659c
--- /dev/null
+++ "b/alstjr7437/\354\240\225\353\240\254/H-Index.py"
@@ -0,0 +1,8 @@
+def solution(citations):
+    citations.sort(reverse=True)  
+    
+    for i in range(len(citations)):
+        if(citations[i] < i+1):    
+            return i
+        
+    return len(citations) 
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