diff --git a/app/main.py b/app/main.py
index 37b9f338..de38394c 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1,3 +1,5 @@
 def count_occurrences(phrase: str, letter: str) -> int:
-    # write your code here
-    pass
+    characters = list(phrase.lower())
+    counter = characters.count(letter.lower())
+
+    return counter