diff --git a/.github/workflows/mri.yml b/.github/workflows/mri.yml
index a3d3d583..fa2a877e 100644
--- a/.github/workflows/mri.yml
+++ b/.github/workflows/mri.yml
@@ -5,6 +5,7 @@ on:
     branches: [ master ]
   pull_request:
     branches: [ master ]
+  workflow_dispatch:
 
 jobs:
   build: