diff --git a/medusa/utils/output.py b/medusa/utils/output.py
index 9bd1ad4..da171f6 100644
--- a/medusa/utils/output.py
+++ b/medusa/utils/output.py
@@ -24,5 +24,5 @@ def format_analysis(analysis: dict[str, set[vy_ast.VyperNode]]):
 
 
 def write_analysis(analysis: str, file_name: str):
-    f = open(file_name, "w")
-    f.write(analysis)
+    with open(file_name, "w") as fh:
+        fh.write(analysis)