diff --git a/lib/buildkite/test_collector/ci.rb b/lib/buildkite/test_collector/ci.rb
index 85ce46a..efc321c 100644
--- a/lib/buildkite/test_collector/ci.rb
+++ b/lib/buildkite/test_collector/ci.rb
@@ -37,6 +37,7 @@ def analytics_env
       "message" => ENV["BUILDKITE_ANALYTICS_MESSAGE"],
       "execution_name_prefix" => ENV["BUILDKITE_ANALYTICS_EXECUTION_NAME_PREFIX"],
       "execution_name_suffix" => ENV["BUILDKITE_ANALYTICS_EXECUTION_NAME_SUFFIX"],
+      "language_version" => RUBY_VERSION,
       "version" => Buildkite::TestCollector::VERSION,
       "collector" => "ruby-#{Buildkite::TestCollector::NAME}",
     }.select { |_, value| !value.nil? }
diff --git a/spec/test_collector/ci_spec.rb b/spec/test_collector/ci_spec.rb
index 0a4a091..7697422 100644
--- a/spec/test_collector/ci_spec.rb
+++ b/spec/test_collector/ci_spec.rb
@@ -11,6 +11,7 @@
     let(:job_id) { "242424" }
     let(:message) { "bananas are tasty" }
     let(:version) { Buildkite::TestCollector::VERSION }
+    let(:language_version) { RUBY_VERSION }
     let(:name) { "ruby-#{Buildkite::TestCollector::NAME}" }
     let(:test_value) { "test_value" }
 
@@ -64,6 +65,7 @@
           "number" => bk_number,
           "job_id" => bk_job_id,
           "message" => bk_message,
+          "language_version" => language_version,
           "version" => version,
           "collector" => name,
           "test" => test_value,
@@ -97,6 +99,7 @@
             "message" => message,
             "execution_name_prefix" => "execution_name_prefix",
             "execution_name_suffix" => "execution_name_suffix",
+            "language_version" => language_version,
             "version" => version,
             "collector" => name,
             "test" => test_value,
@@ -135,6 +138,7 @@
           "branch" => gha_ref,
           "commit_sha" => gha_sha,
           "number" => gha_run_number,
+          "language_version" => language_version,
           "version" => version,
           "collector" => name,
           "test" => test_value,
@@ -164,6 +168,7 @@
             "number" => number,
             "job_id" => job_id,
             "message" => message,
+            "language_version" => language_version,
             "version" => version,
             "collector" => name,
             "test" => test_value,
@@ -198,6 +203,7 @@
           "branch" => c_branch,
           "commit_sha" => c_sha,
           "number" => c_number,
+          "language_version" => language_version,
           "version" => version,
           "collector" => name,
           "test" => test_value,
@@ -227,6 +233,7 @@
             "number" => number,
             "job_id" => job_id,
             "message" => message,
+            "language_version" => language_version,
             "version" => version,
             "collector" => name,
             "test" => test_value,
@@ -262,6 +269,7 @@
           "commit_sha" => c_sha,
           "number" => nil,
           "message" => c_message,
+          "language_version" => language_version,
           "version" => version,
           "collector" => name,
           "test" => test_value,
@@ -292,6 +300,7 @@
             "number" => number,
             "job_id" => job_id,
             "message" => message,
+            "language_version" => language_version,
             "version" => version,
             "collector" => name,
             "test" => test_value,
@@ -313,6 +322,7 @@
         expect(result).to match({
           "CI" => "generic",
           "key" => key,
+          "language_version" => language_version,
           "version" => version,
           "collector" => name,
           "test" => test_value,
@@ -342,6 +352,7 @@
             "number" => number,
             "job_id" => job_id,
             "message" => message,
+            "language_version" => language_version,
             "version" => version,
             "collector" => name,
             "test" => test_value,
@@ -361,6 +372,7 @@
         expect(result).to match({
           "CI" => nil,
           "key" => "845ac829-2ab3-4bbb-9e24-3529755a6d37",
+          "language_version" => language_version,
           "version" => version,
           "collector" => name,
           "test" => test_value,
@@ -390,6 +402,7 @@
             "number" => number,
             "job_id" => job_id,
             "message" => message,
+            "language_version" => language_version,
             "version" => version,
             "collector" => name,
             "test" => test_value,
diff --git a/spec/test_collector/http_client_spec.rb b/spec/test_collector/http_client_spec.rb
index cedf98a..3c42adc 100644
--- a/spec/test_collector/http_client_spec.rb
+++ b/spec/test_collector/http_client_spec.rb
@@ -25,6 +25,7 @@
       "run_env": {
         "CI": nil,
         "key": "build-123",
+        "language_version" => RUBY_VERSION,
         "version": Buildkite::TestCollector::VERSION,
         "collector": "ruby-buildkite-test_collector",
         "test": "test_value"