diff --git a/instrumentation/opentelemetry_ecto/config/test.exs b/instrumentation/opentelemetry_ecto/config/test.exs
index 7a781d0..5087377 100644
--- a/instrumentation/opentelemetry_ecto/config/test.exs
+++ b/instrumentation/opentelemetry_ecto/config/test.exs
@@ -11,4 +11,4 @@ config :opentelemetry_ecto, OpentelemetryEcto.TestRepo,
   pool: Ecto.Adapters.SQL.Sandbox
 
 config :opentelemetry,
-  processors: [{:otel_batch_processor, %{scheduled_delay_ms: 1}}]
+  processors: [{:otel_simple_processor, %{}}]
diff --git a/instrumentation/opentelemetry_ecto/test/opentelemetry_ecto_test.exs b/instrumentation/opentelemetry_ecto/test/opentelemetry_ecto_test.exs
index 44d0aef..11be4f3 100644
--- a/instrumentation/opentelemetry_ecto/test/opentelemetry_ecto_test.exs
+++ b/instrumentation/opentelemetry_ecto/test/opentelemetry_ecto_test.exs
@@ -15,16 +15,7 @@ defmodule OpentelemetryEctoTest do
   end
 
   setup do
-    :application.stop(:opentelemetry)
-    :application.set_env(:opentelemetry, :tracer, :otel_tracer_default)
-
-    :application.set_env(:opentelemetry, :processors, [
-      {:otel_batch_processor, %{scheduled_delay_ms: 1}}
-    ])
-
-    :application.start(:opentelemetry)
-
-    :otel_batch_processor.set_exporter(:otel_exporter_pid, self())
+    :otel_simple_processor.set_exporter(:otel_exporter_pid, self())
 
     OpenTelemetry.Tracer.start_span("test")
 
diff --git a/instrumentation/opentelemetry_phoenix/config/test.exs b/instrumentation/opentelemetry_phoenix/config/test.exs
index a279b9d..28a095d 100644
--- a/instrumentation/opentelemetry_phoenix/config/test.exs
+++ b/instrumentation/opentelemetry_phoenix/config/test.exs
@@ -1,4 +1,4 @@
 import Config
 
 config :opentelemetry,
-  processors: [{:otel_batch_processor, %{scheduled_delay_ms: 1}}]
+  processors: [{:otel_simple_processor, %{}}]
diff --git a/instrumentation/opentelemetry_phoenix/test/opentelemetry_phoenix_test.exs b/instrumentation/opentelemetry_phoenix/test/opentelemetry_phoenix_test.exs
index 526d360..077c900 100644
--- a/instrumentation/opentelemetry_phoenix/test/opentelemetry_phoenix_test.exs
+++ b/instrumentation/opentelemetry_phoenix/test/opentelemetry_phoenix_test.exs
@@ -17,16 +17,8 @@ defmodule OpentelemetryPhoenixTest do
   end
 
   setup do
-    :application.stop(:opentelemetry)
-    :application.set_env(:opentelemetry, :tracer, :otel_tracer_default)
+    :otel_simple_processor.set_exporter(:otel_exporter_pid, self())
 
-    :application.set_env(:opentelemetry, :processors, [
-      {:otel_batch_processor, %{scheduled_delay_ms: 1}}
-    ])
-
-    :application.start(:opentelemetry)
-
-    :otel_batch_processor.set_exporter(:otel_exporter_pid, self())
     :ok
   end