diff --git a/.github/workflows/workers.yaml b/.github/workflows/workers.yaml
index 3b1d21491..49fd0948b 100644
--- a/.github/workflows/workers.yaml
+++ b/.github/workflows/workers.yaml
@@ -49,9 +49,9 @@ jobs:
         #
 
         {
-          git diff --name-only  | grep backend/services | grep -vE ^ee/ | cut -d '/' -f3  
+          git diff --name-only HEAD HEAD~1 | grep backend/services | grep -vE ^ee/ | cut -d '/' -f3  
         
-          git diff --name-only  | grep backend/pkg | grep -vE ^ee/ | cut -d '/' -f3 | uniq | while read -r pkg_name ; do
+          git diff --name-only HEAD HEAD~1 | grep backend/pkg | grep -vE ^ee/ | cut -d '/' -f3 | uniq | while read -r pkg_name ; do
             grep -rl "pkg/$pkg_name" backend/services | cut -d '/' -f3 
           done
         } | uniq > backend/images_to_build.txt