diff --git a/src/algorithms/string.py b/src/algorithms/string.py
index 658439e..cbdad04 100644
--- a/src/algorithms/string.py
+++ b/src/algorithms/string.py
@@ -30,10 +30,7 @@ def word_frequency(text: str) -> dict[str, int]:
     words = text.lower().split()
     frequency = {}
     for word in words:
-        if word in frequency:
-            frequency[word] += 1
-        else:
-            frequency[word] = 1
+        frequency[word] = frequency.get(word, 0) + 1
     return frequency