diff --git a/Swift.gitignore b/Swift.gitignore
index 89d806ec8198b3de9b590a1b0cfbc6445717c26c..c705373deeee82f85adea2fc1baa86c02284369f 100644
--- a/Swift.gitignore
+++ b/Swift.gitignore
@@ -27,6 +27,9 @@ xcuserdata
 *.hmap
 *.ipa
 
+## Playgrounds
+timeline.xctimeline
+
 # Swift Package Manager
 #
 # Add this line if you want to avoid checking in source code from Swift Package Manager dependencies.