diff --git a/sdk/lib/opentelemetry/sdk/correlation_context.rb b/sdk/lib/opentelemetry/sdk/correlation_context.rb
index 2b0976846e..66508368da 100644
--- a/sdk/lib/opentelemetry/sdk/correlation_context.rb
+++ b/sdk/lib/opentelemetry/sdk/correlation_context.rb
@@ -9,7 +9,7 @@
 
 module OpenTelemetry
   module SDK
-    # Contains operational implementataions of the CorrelationContext::Manager
+    # Contains operational implementations of the CorrelationContext::Manager
     module CorrelationContext
     end
   end
diff --git a/sdk/lib/opentelemetry/sdk/resources/auto_detector.rb b/sdk/lib/opentelemetry/sdk/resources/auto_detector.rb
index 961f97c268..26d8bd5035 100644
--- a/sdk/lib/opentelemetry/sdk/resources/auto_detector.rb
+++ b/sdk/lib/opentelemetry/sdk/resources/auto_detector.rb
@@ -17,7 +17,7 @@ module AutoDetector
         DETECTORS = [
           OpenTelemetry::SDK::Resources::Detectors::GoogleCloudPlatform,
           OpenTelemetry::SDK::Resources::Detectors::Telemetry
-        ]
+        ].freeze
 
         def detect
           resources = DETECTORS.map(&:detect)
diff --git a/sdk/lib/opentelemetry/sdk/resources/detectors/google_cloud_platform.rb b/sdk/lib/opentelemetry/sdk/resources/detectors/google_cloud_platform.rb
index 34bcdaa37e..33cfd68d11 100644
--- a/sdk/lib/opentelemetry/sdk/resources/detectors/google_cloud_platform.rb
+++ b/sdk/lib/opentelemetry/sdk/resources/detectors/google_cloud_platform.rb
@@ -44,7 +44,7 @@ def detect
 
           def hostname
             ENV['HOSTNAME'] || `hostname`&.strip
-          rescue StandardError => e
+          rescue StandardError
             ''
           end
         end
diff --git a/sdk/opentelemetry-sdk.gemspec b/sdk/opentelemetry-sdk.gemspec
index a84b9981a9..40445ef28e 100644
--- a/sdk/opentelemetry-sdk.gemspec
+++ b/sdk/opentelemetry-sdk.gemspec
@@ -25,8 +25,8 @@ Gem::Specification.new do |spec|
   spec.require_paths = ['lib']
   spec.required_ruby_version = '>= 2.5.0'
 
-  spec.add_dependency 'opentelemetry-api', '~> 0.4.0'
   spec.add_dependency 'google-cloud-env'
+  spec.add_dependency 'opentelemetry-api', '~> 0.4.0'
 
   spec.add_development_dependency 'bundler', '>= 1.17'
   spec.add_development_dependency 'faraday', '~> 0.13'
diff --git a/sdk/test/opentelemetry/sdk/resources/detectors/google_cloud_platform_test.rb b/sdk/test/opentelemetry/sdk/resources/detectors/google_cloud_platform_test.rb
index 30b78116b8..f6ab7da512 100644
--- a/sdk/test/opentelemetry/sdk/resources/detectors/google_cloud_platform_test.rb
+++ b/sdk/test/opentelemetry/sdk/resources/detectors/google_cloud_platform_test.rb
@@ -24,11 +24,11 @@
         mock = MiniTest::Mock.new
         mock.expect(:compute_engine?, true)
         mock.expect(:project_id, 'opentelemetry')
-        mock.expect(:instance_attribute, 'us-central1', %w(cluster-location))
+        mock.expect(:instance_attribute, 'us-central1', %w[cluster-location])
         mock.expect(:instance_zone, 'us-central1-a')
-        mock.expect(:lookup_metadata, 'opentelemetry-test', %w(instance id))
-        mock.expect(:lookup_metadata, 'opentelemetry-test', %w(instance hostname))
-        mock.expect(:instance_attribute, 'opentelemetry-cluster', %w(cluster-name))
+        mock.expect(:lookup_metadata, 'opentelemetry-test', %w[instance id])
+        mock.expect(:lookup_metadata, 'opentelemetry-test', %w[instance hostname])
+        mock.expect(:instance_attribute, 'opentelemetry-cluster', %w[cluster-name])
         mock.expect(:kubernetes_engine?, true)
         mock.expect(:kubernetes_engine_namespace_id, 'default')