diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
index f71cb08a..909410c4 100644
--- a/.github/workflows/node.js.yml
+++ b/.github/workflows/node.js.yml
@@ -26,6 +26,8 @@ jobs:
         node-version: 20.x
     - run: npm install --force
       working-directory: back_end
+    - run: npm install source-map
+      working-directory: back_end
     - run: npm test suite
       working-directory: back_end