diff --git a/instrumentation/all/opentelemetry-instrumentation-all.gemspec b/instrumentation/all/opentelemetry-instrumentation-all.gemspec
index 25f78e8ed5..b1dbaad771 100644
--- a/instrumentation/all/opentelemetry-instrumentation-all.gemspec
+++ b/instrumentation/all/opentelemetry-instrumentation-all.gemspec
@@ -27,6 +27,7 @@ Gem::Specification.new do |spec|
   spec.required_ruby_version = ">= #{File.read(File.expand_path('../../gemspecs/RUBY_REQUIREMENT', __dir__))}"
 
   spec.add_dependency 'opentelemetry-instrumentation-active_model_serializers', '~> 0.22.0'
+  spec.add_dependency 'opentelemetry-instrumentation-anthropic', '~> 0.1.0'
   spec.add_dependency 'opentelemetry-instrumentation-aws_lambda', '~> 0.3.0'
   spec.add_dependency 'opentelemetry-instrumentation-aws_sdk', '~> 0.8.0'
   spec.add_dependency 'opentelemetry-instrumentation-bunny', '~> 0.22.0'