diff --git a/lib/tasks/changesets.rake b/lib/tasks/changesets.rake
new file mode 100644
index 000000000..93376eb93
--- /dev/null
+++ b/lib/tasks/changesets.rake
@@ -0,0 +1,69 @@
+# Redmine - project management software
+# Copyright (C) 2006-2021  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+namespace :redmine do
+  namespace :changesets do
+    desc 'Fetch changesets from the repositories'
+    task :fetch => :environment do
+      Repository.fetch_changesets
+    end
+
+    desc 'Sync all revisions in repositories related with all active project.'
+    task :reload => :environment do
+      Project.active.has_module(:repository).find_each do |project|
+        project.repositories.find_each do |repository|
+          detail = [
+            "PJ-ID #{repository.project_id}",
+            "Identifier #{repository.identifier}",
+            "URL #{repository.url}",
+          ].join(", ")
+          changesets = repository.changesets
+          puts("Sync revisions: #{changesets.count}: #{detail}")
+          latest_changeset = changesets.first
+          changeset = latest_changeset
+          while changeset
+            revisions = repository.scm.revisions(nil,
+                                                 changeset.identifier,
+                                                 changeset.identifier)
+            revisions.each do |revision|
+              changeset.committer =
+                Changeset.to_utf8(revision.author,
+                                  repository.repo_log_encoding)
+              changeset.comments =
+                Changeset.normalize_comments(revision.message,
+                                             repository.repo_log_encoding)
+              changeset.user =
+                repository.find_committer_user(changeset.committer)
+              next unless changeset.changed?
+
+              changeset.issues = []
+              changeset.scan_for_issues
+              if changeset.save
+                puts("Sync revision: #{changeset.identifier}, #{detail}")
+              else
+                puts("Failed to sync revision: " +
+                    "#{changeset.identifier}, #{detail}: " +
+                    changeset.errors.to_s)
+              end
+            end
+            changeset = changeset.previous
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/tasks/redmine.rake b/lib/tasks/redmine.rake
index 2bebaf18c..b39f62775 100644
--- a/lib/tasks/redmine.rake
+++ b/lib/tasks/redmine.rake
@@ -49,7 +49,8 @@ namespace :redmine do
 
   desc 'Fetch changesets from the repositories'
   task :fetch_changesets => :environment do
-    Repository.fetch_changesets
+    warn 'redmine:fetch_changesets is deprecated. Use redmine:changesets:fetch instead.'
+    Rake::Task["redmine:changesets:fetch"].invoke
   end
 
   desc 'Migrates and copies plugins assets.'