diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 09cb0435fa..95681e9333 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -615,6 +615,10 @@ jobs:
           docker create --name moonbeam_container $DOCKER_TAG bash
           docker cp moonbeam_container:moonbeam/moonbeam test/tmp/moonbeam_rt
           docker rm -f moonbeam_container
+      - name: "TEMPORARY: Download forked polkadot-bins"
+        run: |
+          wget https://opslayer-dev-artifacts.s3.us-east-2.amazonaws.com/bins/moonbeam/polkadot/1.3.0/polkadot -O test/tmp/polkadot-forked-1.3
+          chmod +x test/tmp/polkadot-forked-1.3
       - name: "Run zombie upgrade test"
         run: |
           cd test
diff --git a/test/configs/zombieAlphanet.json b/test/configs/zombieAlphanet.json
index 033cf2fa5a..88bff1d1b7 100644
--- a/test/configs/zombieAlphanet.json
+++ b/test/configs/zombieAlphanet.json
@@ -5,8 +5,7 @@
   },
   "relaychain": {
     "chain": "rococo-local",
-    "chain_spec_path": "tmp/rococo-modified-spec.json",
-    "default_command": "tmp/polkadot",
+    "default_command": "tmp/polkadot-forked-1.3",
     "default_args": [
       "--no-hardware-benchmarks",
       "-lparachain=debug",
diff --git a/test/configs/zombieAlphanetRpc.json b/test/configs/zombieAlphanetRpc.json
index ec7a0b9aeb..6607a9ac59 100644
--- a/test/configs/zombieAlphanetRpc.json
+++ b/test/configs/zombieAlphanetRpc.json
@@ -5,8 +5,7 @@
   },
   "relaychain": {
     "chain": "rococo-local",
-    "default_command": "tmp/polkadot",
-    "chain_spec_path": "tmp/rococo-raw-spec.json",
+    "default_command": "tmp/polkadot-forked-1.3",
     "default_args": [
       "--no-hardware-benchmarks",
       "-lparachain=debug",