diff --git a/.github/workflows/publish-charts.yml b/.github/workflows/publish-charts.yml
index 50e66a2..5c20e91 100644
--- a/.github/workflows/publish-charts.yml
+++ b/.github/workflows/publish-charts.yml
@@ -33,18 +33,30 @@ jobs:
             fi
           done
           
-          # Convert to JSON array
-          CHARTS_JSON=$(printf '%s\n' "${CHARTS[@]}" | jq -R . | jq -s .)
-          echo "charts=$CHARTS_JSON" >> $GITHUB_OUTPUT
           echo "Found charts: ${CHARTS[*]}"
+          
+          # Convert to JSON array manually for compatibility
+          if [ ${#CHARTS[@]} -eq 0 ]; then
+            echo "charts=[]" >> $GITHUB_OUTPUT
+          else
+            CHARTS_JSON="["
+            for i in "${!CHARTS[@]}"; do
+              if [ $i -gt 0 ]; then
+                CHARTS_JSON="${CHARTS_JSON},"
+              fi
+              CHARTS_JSON="${CHARTS_JSON}\"${CHARTS[$i]}\""
+            done
+            CHARTS_JSON="${CHARTS_JSON}]"
+            echo "charts=${CHARTS_JSON}" >> $GITHUB_OUTPUT
+          fi
 
   lint-test:
     needs: detect-charts
     runs-on: ubuntu-latest
-    if: needs.detect-charts.outputs.charts != '[]'
+    if: needs.detect-charts.outputs.charts != '[]' && needs.detect-charts.outputs.charts != ''
     strategy:
       matrix:
-        chart: ${{ fromJson(needs.detect-charts.outputs.charts) }}
+        chart: ${{ fromJSON(needs.detect-charts.outputs.charts) }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -72,7 +84,7 @@ jobs:
     if: github.ref == 'refs/heads/main' || github.ref == 'refs/heads/master'
     strategy:
       matrix:
-        chart: ${{ fromJson(needs.detect-charts.outputs.charts) }}
+        chart: ${{ fromJSON(needs.detect-charts.outputs.charts) }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -146,5 +158,5 @@ jobs:
       - name: Summary
         run: |
           echo "📦 Helm Charts Publication Summary"
-          echo "Charts processed: ${{ join(fromJson(needs.detect-charts.outputs.charts), ', ') }}"
+          echo "Charts processed: ${{ join(fromJSON(needs.detect-charts.outputs.charts), ', ') }}"
           echo "Registry: $GITEA_URL/packages/$GITEA_OWNER"
\ No newline at end of file