diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 63129a2..4bbc794 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -33,12 +33,18 @@ jobs:
         pip install -r requirements.txt
         pip install -r requirements-dev.txt
         pip install codecov 
+
     - name: Lint with flake8
       run: flake8 .
 
     - name: Mypy check
       run: mypy transaction_manager
     
+    - name: Launch hardhat node
+      working-directory: hardhat-node
+      run: |
+        docker-compose up -d 
+
     - name: Run test containers
       run: ./scripts/run-test-containers.sh && sleep 60
 
diff --git a/.gitmodules b/.gitmodules
index d54a208..207279c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,4 +1,10 @@
 [submodule "helper-scripts"]
 	path = helper-scripts
 	url = https://github.com/skalenetwork/helper-scripts.git
-	branch = develop
+    branch = develop
+
+[submodule "hardhat-node"]
+	path = hardhat-node
+	url = https://github.com/skalenetwork/hardhat-node.git
+    branch = develop
+
diff --git a/scripts/run-test-containers.sh b/scripts/run-test-containers.sh
index 4d83988..105fd15 100755
--- a/scripts/run-test-containers.sh
+++ b/scripts/run-test-containers.sh
@@ -65,12 +65,12 @@ cleanup_skale_dir
 cleanup_redis_dir
 create_skale_dir
 create_redis_dir
-build tm hnode
+build tm
 
 if [ -z ${SGX_URL} ]; then
-    run_containers tm hnode redis
+    run_containers tm redis
 else
-    run_containers sgx tm hnode redis
+    run_containers sgx tm redis
     gen_sgx_key
 fi