diff --git a/.gitea/workflows/update-factorio-modlist.yml b/.gitea/workflows/update-factorio-modlist.yml
index 192c5a1..8f73137 100644
--- a/.gitea/workflows/update-factorio-modlist.yml
+++ b/.gitea/workflows/update-factorio-modlist.yml
@@ -7,8 +7,10 @@ jobs:
   update-mods:
     runs-on: ubuntu-latest
     steps:
+      - name: Install jq
+        run: sudo apt-get update && sudo apt-get install -y jq
 
-      - name: Get list of .zip files via API
+      - name: Get list of .zip files in Factorio
         env:
           GITEA_TOKEN: ${{ secrets.gamerarena }}
           GITEA_API_URL: https://git.garpnet.it/api/v1
@@ -16,50 +18,48 @@ jobs:
           REPO: FastDL
           BRANCH: main
         run: |
-          # Prende la lista di file nella root del repo
           response=$(curl -s -H "Authorization: token $GITEA_TOKEN" \
             "$GITEA_API_URL/repos/$OWNER/$REPO/contents/Factorio?ref=$BRANCH")
           
-          # Filtra solo i file .zip e crea array JSON
           zip_files=$(echo "$response" | jq -r '.[] | select(.type=="file") | select(.name|endswith(".zip")) | .name')
           json_array=$(echo "$zip_files" | jq -R -s -c 'split("\n")[:-1]')
-          
-          echo "Lista file .zip: $json_array"
-          
-          # Scrive mods.json
           echo "$json_array" > mods.json
+          echo "Lista file .zip: $json_array"
 
-      - name: Delete mods.json if exists
+      - name: Get current mods.json SHA
+        id: getsha
         env:
-            GITEA_TOKEN: ${{ secrets.gamerarena }}
-            GITEA_API_URL: https://git.garpnet.it/api/v1
-            OWNER: GamerArena
-            REPO: FastDL
-            BRANCH: main
+          GITEA_TOKEN: ${{ secrets.gamerarena }}
+          GITEA_API_URL: https://git.garpnet.it/api/v1
+          OWNER: GamerArena
+          REPO: FastDL
+          BRANCH: main
         run: |
           response=$(curl -s -H "Authorization: token $GITEA_TOKEN" \
             "$GITEA_API_URL/repos/$OWNER/$REPO/contents/Factorio/mods.json?ref=$BRANCH")
           sha=$(echo "$response" | jq -r '.sha // empty')
-          if [ -n "$sha" ]; then
-            curl -X DELETE -H "Authorization: token $GITEA_TOKEN" \
-                  -H "Content-Type: application/json" \
-                  -d "{\"sha\":\"$sha\",\"branch\":\"$BRANCH\",\"message\":\"Delete mods.json\"}" \
-                  "$GITEA_API_URL/repos/$OWNER/$REPO/contents/mods.json"
-            echo "mods.json deleted"
-          else
-            echo "mods.json does not exist, skipping delete"
-          fi
+          echo "sha=$sha" >> $GITHUB_OUTPUT
 
-      - name: Upload mods.json via API
+      - name: Update mods.json via API
         env:
           GITEA_TOKEN: ${{ secrets.gamerarena }}
           GITEA_API_URL: https://git.garpnet.it/api/v1
           OWNER: GamerArena
           REPO: FastDL
           BRANCH: main
+          SHA: ${{ steps.getsha.outputs.sha }}
         run: |
           content=$(base64 -w 0 mods.json)
-          curl -X PUT -H "Authorization: token $GITEA_TOKEN" \
-               -H "Content-Type: application/json" \
-               -d "{\"content\":\"$content\",\"branch\":\"$BRANCH\",\"message\":\"Update mods.json\"}" \
-               "$GITEA_API_URL/repos/$OWNER/$REPO/contents/Factorio/mods.json"
\ No newline at end of file
+          if [ -n "$SHA" ]; then
+            # Aggiorna il file esistente
+            curl -X PUT -H "Authorization: token $GITEA_TOKEN" \
+                 -H "Content-Type: application/json" \
+                 -d "{\"content\":\"$content\",\"sha\":\"$SHA\",\"branch\":\"$BRANCH\",\"message\":\"Update mods.json\"}" \
+                 "$GITEA_API_URL/repos/$OWNER/$REPO/contents/Factorio/mods.json"
+          else
+            # Crea il file se non esiste
+            curl -X PUT -H "Authorization: token $GITEA_TOKEN" \
+                 -H "Content-Type: application/json" \
+                 -d "{\"content\":\"$content\",\"branch\":\"$BRANCH\",\"message\":\"Create mods.json\"}" \
+                 "$GITEA_API_URL/repos/$OWNER/$REPO/contents/Factorio/mods.json"
+          fi