diff --git a/Walrus.Core/WalrusService.cs b/Walrus.Core/WalrusService.cs
index 0bc0181..e2a6795 100644
--- a/Walrus.Core/WalrusService.cs
+++ b/Walrus.Core/WalrusService.cs
@@ -50,6 +50,7 @@ public IEnumerable<CommitGroup> ExecuteQuery(WalrusQuery query)
                         g.OrderBy(c => c.Timestamp))),
                 
                 WalrusQuery.QueryGrouping.Date => commits
+                    .OrderBy(c => c.Timestamp)
                     .GroupBy(c => c.Timestamp.Date)
                     .Select(g => new CommitGroup(g.Key, 
                         g.OrderBy(c => c.Timestamp))),