diff --git a/.github/workflows/102-flow-ats-deployment-test.yaml b/.github/workflows/102-flow-ats-deployment-test.yaml
index bb6fb5429a..97027a537f 100644
--- a/.github/workflows/102-flow-ats-deployment-test.yaml
+++ b/.github/workflows/102-flow-ats-deployment-test.yaml
@@ -288,7 +288,7 @@ jobs:
       - name: Setup Hiero Solo Network
         id: solo
         if: steps.docker-check.outputs.available == 'true'
-        uses: hiero-ledger/hiero-solo-action@fbca3e7a99ce9aa8a250563a81187abe115e0dad # v0.16.0
+        uses: hiero-ledger/hiero-solo-action@c397dc8f75a4d24ae0be621529d7f9dfe8a9f460 # v0.21.0
         with:
           installRelay: true
           installMirrorNode: true