diff --git a/app/main.py b/app/main.py
index 37b9f338b..729fc27fd 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1,3 +1,6 @@
 def count_occurrences(phrase: str, letter: str) -> int:
-    # write your code here
-    pass
+    counter = 0
+    for char in phrase:
+        if char.lower() == letter.lower():
+            counter += 1
+    return counter