diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index feb8c23..4c3c32e 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -34,7 +34,7 @@ jobs:
 
       - name: set image name
         run: |
-          echo "IMG_NAME=${{ steps.login-ecr.outputs.registry }}/kilt/prototype-chain:latest" >> "$GITHUB_ENV"
+          echo "IMG_NAME=${{ steps.login-ecr.outputs.registry }}/kiltprotocol/prototype-chain:latest" >> "$GITHUB_ENV"
 
       - name: pull image
         run: docker pull $IMG_NAME
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index d276b21..01ea30a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -29,7 +29,6 @@ jobs:
       - name: set image name
         run: |
           echo "IMG_NAME=${{ steps.login-ecr.outputs.registry }}/kilt/prototype-chain:latest" >> "$GITHUB_ENV"
-
       - name: pull image
         run: docker pull $IMG_NAME
 
diff --git a/.gitignore b/.gitignore
index 6fe4aa7..97b842a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@ yarn-error.log
 /.vscode
 /esm/**
 
-
 *.js
 *.d.ts
+
+/.vscode 
diff --git a/src/tests/utils.ts b/src/tests/utils.ts
index d0fcb99..b69d83c 100644
--- a/src/tests/utils.ts
+++ b/src/tests/utils.ts
@@ -161,7 +161,7 @@ export async function startContainer(): Promise<string> {
   const image = process.env.TESTCONTAINERS_NODE_IMG || 'kiltprotocol/mashnet-node'
   console.log(`using testcontainer with image ${image}`)
   const testcontainer = new GenericContainer(image)
-    .withCommand(['--dev', `--ws-port=${WS_PORT}`, '--ws-external'])
+    .withCommand(['--dev', `--rpc-port=${WS_PORT}`, '--rpc-external'])
     .withExposedPorts(WS_PORT)
     .withWaitStrategy(Wait.forLogMessage(`:${WS_PORT}`))
   const started = await testcontainer.start()