diff --git a/python/ray/autoscaler/aws/development-example.yaml b/python/ray/autoscaler/aws/development-example.yaml
index bb6c884d7..f3243bf69 100644
--- a/python/ray/autoscaler/aws/development-example.yaml
+++ b/python/ray/autoscaler/aws/development-example.yaml
@@ -99,7 +99,7 @@ setup_commands:
     - git clone https://github.com/ray-project/ray || true
     - ray/ci/travis/install-bazel.sh
     - cd ray/python/ray/dashboard/client; npm ci; npm run build
-    - pip install boto3==1.4.8 cython==0.29.0 aiohttp psutil setproctitle
+    - pip install boto3==1.4.8 cython==0.29.0 aiohttp grpcio psutil setproctitle
     - cd ray/python; pip install -e . --verbose
 
 # Custom commands that will be run on the head node after common setup.
diff --git a/python/ray/dashboard/client/src/api.ts b/python/ray/dashboard/client/src/api.ts
index d9b4167a8..aab43ed2a 100644
--- a/python/ray/dashboard/client/src/api.ts
+++ b/python/ray/dashboard/client/src/api.ts
@@ -1,6 +1,6 @@
 const base =
   process.env.NODE_ENV === "development"
-    ? "http://localhost:8080"
+    ? "http://localhost:8265"
     : window.location.origin;
 
 // TODO(mitchellstern): Add JSON schema validation for the responses.
diff --git a/python/ray/services.py b/python/ray/services.py
index 7f18d5b93..4202abf01 100644
--- a/python/ray/services.py
+++ b/python/ray/services.py
@@ -1040,7 +1040,7 @@ def start_dashboard(host,
     Returns:
         ProcessInfo for the process that was started.
     """
-    port = 8080
+    port = 8265  # Note: list(map(ord, "RAY")) == [82, 65, 89]
     while True:
         try:
             port_test_socket = socket.socket()
diff --git a/python/ray/tests/test_webui.py b/python/ray/tests/test_webui.py
index 78a5ec723..521d7c80c 100644
--- a/python/ray/tests/test_webui.py
+++ b/python/ray/tests/test_webui.py
@@ -19,7 +19,7 @@ def test_get_webui(shutdown_only):
     webui_url = addresses["webui_url"]
     assert ray.get_webui_url() == webui_url
 
-    assert re.match(r"^http://\d+\.\d+\.\d+\.\d+:8080$", webui_url)
+    assert re.match(r"^http://\d+\.\d+\.\d+\.\d+:8265$", webui_url)
 
     start_time = time.time()
     while True: