diff --git a/app/services/merge_requests/base_service.rb b/app/services/merge_requests/base_service.rb
index 5a53b973059..582d5c47b66 100644
--- a/app/services/merge_requests/base_service.rb
+++ b/app/services/merge_requests/base_service.rb
@@ -39,7 +39,7 @@ module MergeRequests
     private
 
     # Returns all origin and fork merge requests from `@project` satisfying passed arguments.
-    def merge_requests_for(source_branch, mr_states: [:opened])
+    def merge_requests_for(source_branch, mr_states: [:opened, :reopened])
       MergeRequest
         .with_state(mr_states)
         .where(source_branch: source_branch, source_project_id: @project.id)
diff --git a/changelogs/unreleased/30291-reopen-mr.yml b/changelogs/unreleased/30291-reopen-mr.yml
new file mode 100644
index 00000000000..4ae3e90eeba
--- /dev/null
+++ b/changelogs/unreleased/30291-reopen-mr.yml
@@ -0,0 +1,4 @@
+---
+title: Include reopened MRs when searching for opened ones
+merge_request: 10407
+author:
diff --git a/spec/services/merge_requests/refresh_service_spec.rb b/spec/services/merge_requests/refresh_service_spec.rb
index c22d145ca5d..03215a4624a 100644
--- a/spec/services/merge_requests/refresh_service_spec.rb
+++ b/spec/services/merge_requests/refresh_service_spec.rb
@@ -49,6 +49,7 @@ describe MergeRequests::RefreshService, services: true do
 
     context 'push to origin repo source branch' do
       let(:refresh_service) { service.new(@project, @user) }
+
       before do
         allow(refresh_service).to receive(:execute_hooks)
         refresh_service.execute(@oldrev, @newrev, 'refs/heads/master')
@@ -70,6 +71,32 @@ describe MergeRequests::RefreshService, services: true do
       end
     end
 
+    context 'push to origin repo source branch when an MR was reopened' do
+      let(:refresh_service) { service.new(@project, @user) }
+
+      before do
+        @merge_request.update(state: :reopened)
+
+        allow(refresh_service).to receive(:execute_hooks)
+        refresh_service.execute(@oldrev, @newrev, 'refs/heads/master')
+        reload_mrs
+      end
+
+      it 'executes hooks with update action' do
+        expect(refresh_service).to have_received(:execute_hooks).
+          with(@merge_request, 'update', @oldrev)
+
+        expect(@merge_request.notes).not_to be_empty
+        expect(@merge_request).to be_open
+        expect(@merge_request.merge_when_pipeline_succeeds).to be_falsey
+        expect(@merge_request.diff_head_sha).to eq(@newrev)
+        expect(@fork_merge_request).to be_open
+        expect(@fork_merge_request.notes).to be_empty
+        expect(@build_failed_todo).to be_done
+        expect(@fork_build_failed_todo).to be_done
+      end
+    end
+
     context 'push to origin repo target branch' do
       before do
         service.new(@project, @user).execute(@oldrev, @newrev, 'refs/heads/feature')