diff --git a/Gemfile.lock b/Gemfile.lock
index 219973d..a1ebf94 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,7 +9,7 @@ PATH
       nokogiri (~> 1.10)
       opentelemetry-exporter-jaeger (= 0.20.1)
       opentelemetry-instrumentation-concurrent_ruby (= 0.19.2)
-      opentelemetry-instrumentation-http_client (= 0.19.3)
+      opentelemetry-instrumentation-http_client (= 0.19.4)
       opentelemetry-instrumentation-redis (= 0.21.2)
       opentelemetry-instrumentation-sinatra (= 0.19.3)
       opentelemetry-resource_detectors (= 0.19.1)
@@ -70,9 +70,12 @@ GEM
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
     net-ldap (0.17.0)
+    nio4r (2.5.8)
     nio4r (2.5.8-java)
     nokogiri (1.12.5-java)
       racc (~> 1.4)
+    nokogiri (1.12.5-x86_64-linux)
+      racc (~> 1.4)
     opentelemetry-api (1.0.1)
     opentelemetry-common (0.19.3)
       opentelemetry-api (~> 1.0)
@@ -86,7 +89,7 @@ GEM
     opentelemetry-instrumentation-concurrent_ruby (0.19.2)
       opentelemetry-api (~> 1.0)
       opentelemetry-instrumentation-base (~> 0.19.0)
-    opentelemetry-instrumentation-http_client (0.19.3)
+    opentelemetry-instrumentation-http_client (0.19.4)
       opentelemetry-api (~> 1.0)
       opentelemetry-common (~> 0.19.3)
       opentelemetry-instrumentation-base (~> 0.19.0)
@@ -113,12 +116,18 @@ GEM
       ast (~> 2.4.1)
     pickup (0.0.11)
     prometheus-client (2.1.0)
+    pry (0.14.1)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
     pry (0.14.1-java)
       coderay (~> 1.1)
       method_source (~> 1.0)
       spoon (~> 0.0)
+    puma (5.6.2)
+      nio4r (~> 2.0)
     puma (5.6.2-java)
       nio4r (~> 2.0)
+    racc (1.6.0)
     racc (1.6.0-java)
     rack (2.2.3)
     rack-protection (2.2.0)
@@ -182,6 +191,7 @@ GEM
 
 PLATFORMS
   universal-java-1.8
+  x86_64-linux
 
 DEPENDENCIES
   climate_control (>= 0.2.0)
diff --git a/vmpooler.gemspec b/vmpooler.gemspec
index 49e2375..3c903a9 100644
--- a/vmpooler.gemspec
+++ b/vmpooler.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'nokogiri', '~> 1.10'
   s.add_dependency 'opentelemetry-exporter-jaeger', '= 0.20.1'
   s.add_dependency 'opentelemetry-instrumentation-concurrent_ruby', '= 0.19.2'
-  s.add_dependency 'opentelemetry-instrumentation-http_client', '= 0.19.3'
+  s.add_dependency 'opentelemetry-instrumentation-http_client', '= 0.19.4'
   s.add_dependency 'opentelemetry-instrumentation-redis', '= 0.21.2'
   s.add_dependency 'opentelemetry-instrumentation-sinatra', '= 0.19.3'
   s.add_dependency 'opentelemetry-resource_detectors', '= 0.19.1'