diff --git a/instrumentation/action_pack/CHANGELOG.md b/instrumentation/action_pack/CHANGELOG.md
index a0c3155cf3..41d81d6a32 100644
--- a/instrumentation/action_pack/CHANGELOG.md
+++ b/instrumentation/action_pack/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Release History: opentelemetry-instrumentation-action_pack
 
+### v0.12.2 / 2025-06-04
+
+* FIXED: Rack span class naming
+
 ### v0.12.1 / 2025-05-07
 
 * FIXED: Account for `nil` routes
diff --git a/instrumentation/action_pack/lib/opentelemetry/instrumentation/action_pack/version.rb b/instrumentation/action_pack/lib/opentelemetry/instrumentation/action_pack/version.rb
index d72f04f090..dc69f48d0e 100644
--- a/instrumentation/action_pack/lib/opentelemetry/instrumentation/action_pack/version.rb
+++ b/instrumentation/action_pack/lib/opentelemetry/instrumentation/action_pack/version.rb
@@ -7,7 +7,7 @@
 module OpenTelemetry
   module Instrumentation
     module ActionPack
-      VERSION = '0.12.1'
+      VERSION = '0.12.2'
     end
   end
 end