diff --git a/.buildkite/pipeline.yml b/.buildkite/pipeline.yml
index 15c9d94..9b62864 100644
--- a/.buildkite/pipeline.yml
+++ b/.buildkite/pipeline.yml
@@ -11,14 +11,17 @@ steps:
           - cd rspec
           - bundle install
           - bktec run
+        env:
+          BUILDKITE_TESTS_OTLP_RELAY: "true"
         soft_fail:
           - exit_status: 1
         plugins:
-          - tests#v1.0.0:
+          - tests#v1.0.1:
               test-runner: rspec
               result-path: tmp/rspec.json
               suite-slug: test-engine-client-examples
               upload-results: false
+              client-version: "v3.1.0-rc.1"
           - mise#v1.1.4:
               dir: rspec
 
diff --git a/rspec/Gemfile b/rspec/Gemfile
index 2e2c539..1574c31 100644
--- a/rspec/Gemfile
+++ b/rspec/Gemfile
@@ -6,6 +6,6 @@ source "https://rubygems.org"
 
 gem "rspec", "~> 3.13"
 
-gem "buildkite-test_collector",
-    github: "buildkite/test-collector-ruby",
-    branch: "main"
+gem "buildkite-test_collector", "2.15.0"
+gem "opentelemetry-exporter-otlp", "~> 0.34", require: false
+gem "opentelemetry-sdk", "~> 1.13", require: false
diff --git a/rspec/Gemfile.lock b/rspec/Gemfile.lock
index 9159250..e4592f7 100644
--- a/rspec/Gemfile.lock
+++ b/rspec/Gemfile.lock
@@ -1,17 +1,9 @@
-GIT
-  remote: https://github.com/buildkite/test-collector-ruby.git
-  revision: 5ef5f2aad8902e8d3c2615cb6088c13b58830a01
-  branch: main
-  specs:
-    buildkite-test_collector (2.14.0)
-      concurrent-ruby
-      opentelemetry-exporter-otlp (~> 0.34)
-      opentelemetry-sdk (~> 1.13)
-
 GEM
   remote: https://rubygems.org/
   specs:
     bigdecimal (4.1.2)
+    buildkite-test_collector (2.15.0)
+      concurrent-ruby
     concurrent-ruby (1.3.8)
     diff-lcs (1.6.0)
     google-protobuf (4.36.0)
@@ -64,7 +56,9 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  buildkite-test_collector!
+  buildkite-test_collector (= 2.15.0)
+  opentelemetry-exporter-otlp (~> 0.34)
+  opentelemetry-sdk (~> 1.13)
   rspec (~> 3.13)
 
 BUNDLED WITH