diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 0c35bdd3..c546a357 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -161,11 +161,11 @@ jobs:
       # TODO: eventually figure out why we can't run encryption tests on CI.
       - name: Run tests for Cassandra and Scylla
         if: ${{ !matrix.test_only_cassandra }}
-        run: mix test.all --trace --exclude encryption --exclude ccm --only tmp
+        run: mix test.all --trace --exclude encryption --exclude ccm --exclude toxiproxy
 
       - name: Run tests for Cassandra only
         if: ${{ matrix.test_only_cassandra }}
-        run: mix test --trace --exclude encryption --exclude ccm
+        run: mix test --trace --exclude encryption --exclude ccm --exclude toxiproxy
 
       - name: Dump Docker logs on failure
         uses: jwalton/gh-docker-logs@v1
diff --git a/test/xandra/cluster_test.exs b/test/xandra/cluster_test.exs
index ae75e403..7a1101b2 100644
--- a/test/xandra/cluster_test.exs
+++ b/test/xandra/cluster_test.exs
@@ -144,9 +144,17 @@ defmodule Xandra.ClusterTest do
   end
 
   describe "start_link/1" do
-    test "doesn't fail to start if the control connection fails to connect", %{base_options: opts} do
+    @tag telemetry_events: [[:xandra, :cluster, :control_connection, :failed_to_connect]]
+    test "doesn't fail to start if the control connection fails to connect",
+         %{base_options: opts, telemetry_ref: telemetry_ref} do
       opts = Keyword.merge(opts, nodes: ["127.0.0.1:8092"], sync_connect: false)
       pid = start_link_supervised!({Cluster, opts})
+
+      assert_telemetry [:control_connection, :failed_to_connect], %{
+        cluster_pid: ^pid,
+        reason: :econnrefused
+      }
+
       :sys.get_state(pid)
     end
 
diff --git a/test/xandra_toxiproxy_test.exs b/test/xandra_toxiproxy_test.exs
index cfd9e233..ff9dee5f 100644
--- a/test/xandra_toxiproxy_test.exs
+++ b/test/xandra_toxiproxy_test.exs
@@ -35,7 +35,7 @@ defmodule XandraToxiproxyTest do
     conn = start_supervised!({Xandra, opts})
 
     ToxiproxyEx.get!(:xandra_test_cassandra)
-    |> ToxiproxyEx.toxic(:limit_data, bytes: 120)
+    |> ToxiproxyEx.toxic(:limit_data, bytes: 500)
     |> ToxiproxyEx.apply!(fn ->
       assert {:error, %ConnectionError{reason: :disconnected}} =
                Xandra.prepare(conn, "SELECT * FROM system.local")