diff --git a/.github/workflows/Invalidations.yml b/.github/workflows/Invalidations.yml
index 3adb7f8..904cb90 100644
--- a/.github/workflows/Invalidations.yml
+++ b/.github/workflows/Invalidations.yml
@@ -45,8 +45,8 @@ jobs:
 
     - name: Report invalidation counts
       run: |
-        echo "Invalidations on default branch: ${{ steps.invs_default.outputs.total }} (${{ steps.invs_default.outputs.deps }} via deps)" >> $GITHUB_STEP_SUMMARY
-        echo "This branch: ${{ steps.invs_pr.outputs.total }} (${{ steps.invs_pr.outputs.deps }} via deps)" >> $GITHUB_STEP_SUMMARY
+        echo "Invalidations on default branch: ${{ fromJSON(steps.invs_default.outputs.total) }} (${{ fromJSON(steps.invs_default.outputs.deps) }} via deps)" >> $GITHUB_STEP_SUMMARY
+        echo "This branch: ${{ fromJSON(steps.invs_pr.outputs.total) }} (${{ fromJSON(steps.invs_pr.outputs.deps) }} via deps)" >> $GITHUB_STEP_SUMMARY
     - name: Check if the PR does increase number of invalidations
       if: steps.invs_pr.outputs.total > steps.invs_default.outputs.total
       run: exit 1
diff --git a/action.yml b/action.yml
index c134825..1148c03 100644
--- a/action.yml
+++ b/action.yml
@@ -78,8 +78,9 @@ runs:
         )
 
         # Set outputs
+        using Printf
         open(ENV["GITHUB_OUTPUT"], "a") do io
-          println(io, "total=$(inv_total)")
-          println(io, "deps=$(inv_deps)")
+          println(io, @sprintf("total=%09d", inv_total))
+          println(io, @sprintf("deps=%09d", inv_deps))
         end
       shell: julia --color=yes --project=. {0}