diff --git a/CHANGELOG.md b/CHANGELOG.md
index a5f4a0a..59cf0c4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@ The format is based on and uses the types of changes according to [Keep a Change
 - Added sorting to output.
 - Created new functions for improved modularity.
 - Parameter validation for excel and csv path in sync function
+- Added Output type to tests.
 
 ### Fixed