Trigger on relevant source changes
diff --git a/.github/workflows/maven_legacy.yml b/.github/workflows/maven_legacy.yml
index 4f38d47..7da8f57 100644
--- a/.github/workflows/maven_legacy.yml
+++ b/.github/workflows/maven_legacy.yml
@@ -22,6 +22,7 @@
   push:
     include:
       - '**/workflows/maven_legacy.yml'
+      - 'commons-math-legacy/**'
 
 permissions:
   contents: read