diff --git a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/fs/DeleteTrashFolders.java b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/fs/DeleteTrashFolders.java
index 7b84951..1be7f1c 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/fs/DeleteTrashFolders.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/fs/DeleteTrashFolders.java
@@ -57,7 +57,7 @@
 
     /**
      * Newer trash folder name format. Besides the changes in TRASH_2, it uses a timestamp format
-     * (YYYYMMddHHmmss) instead of the epoch one for increased readability.
+     * (yyyyMMddHHmmss) instead of the epoch one for increased readability.
      */
     private static final Pattern TRASH_3 = Pattern.compile(".*\\.\\d{14}.%deleted%.git");
 
diff --git a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/fs/FilesystemDeleteHandler.java b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/fs/FilesystemDeleteHandler.java
index d8a4883..ac50295 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/fs/FilesystemDeleteHandler.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/fs/FilesystemDeleteHandler.java
@@ -42,7 +42,7 @@
 public class FilesystemDeleteHandler {
   private static final FluentLogger log = FluentLogger.forEnclosingClass();
   private static final DateTimeFormatter FORMAT =
-      DateTimeFormatter.ofPattern("YYYYMMddHHmmss").withZone(ZoneId.of("UTC"));
+      DateTimeFormatter.ofPattern("yyyyMMddHHmmss").withZone(ZoneId.of("UTC"));
 
   private final GitRepositoryManager repoManager;
   private final DynamicSet<ProjectDeletedListener> deletedListeners;