diff --git a/python/tasks/task_05_count_vowels.py b/python/tasks/task_05_count_vowels.py
index 957ebd1..1ce1987 100644
--- a/python/tasks/task_05_count_vowels.py
+++ b/python/tasks/task_05_count_vowels.py
@@ -4,4 +4,12 @@ def count_vowels(s: str) -> int:
     """
     Vrátí počet samohlásek v řetězci.
     """
+    vowels = "AEIOUaeiouÁÉÍÓÚáéíóúÄËÏÖÜäëïöü"
 
+    count = 0
+
+    for char in s:
+        if char in vowels:
+            count += 1
+
+    return count