diff --git a/spec/integrations/dedupe_impression_spec.rb b/spec/integrations/dedupe_impression_spec.rb
index 399d3045..c5d0e08c 100644
--- a/spec/integrations/dedupe_impression_spec.rb
+++ b/spec/integrations/dedupe_impression_spec.rb
@@ -51,11 +51,8 @@
       expect(debug_client.get_treatments_with_config_by_flag_sets('admin', ['set_3'])).to eq treatments
       expect(debug_client.get_treatment('24', 'Test_Save_1')).to eq 'off'
       expect(debug_client.get_treatment('24', 'Test_Save_1')).to eq 'off'
-
+      sleep 1
       impressions = debug_client.instance_variable_get(:@impressions_repository).batch
-
-      sleep 0.5
-
       expect(impressions.size).to eq 7
     end
 
@@ -74,7 +71,7 @@
 
       impressions = debug_client.instance_variable_get(:@impressions_repository).batch
 
-      sleep 0.5
+      sleep 1
 
       expect(impressions.size).to eq 9
     end
diff --git a/splitclient-rb.gemspec b/splitclient-rb.gemspec
index a8adca6a..0a86d725 100644
--- a/splitclient-rb.gemspec
+++ b/splitclient-rb.gemspec
@@ -47,8 +47,8 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'simplecov', '~> 0.20'
   spec.add_development_dependency 'simplecov-json', '~> 0.2'
   spec.add_development_dependency 'timecop', '~> 0.9'
-  spec.add_development_dependency 'webmock', '~> 3.14'
-  spec.add_development_dependency 'webrick', '~> 1.7'
+  spec.add_development_dependency 'webmock', '~> 3.24'
+  spec.add_development_dependency 'webrick', '~> 1.8.2'
 
   spec.add_runtime_dependency 'bitarray', '~> 1.3'
   spec.add_runtime_dependency 'concurrent-ruby', '~> 1.0'