diff --git a/config/dev.exs b/config/dev.exs
index 8e571918..f3e085e4 100644
--- a/config/dev.exs
+++ b/config/dev.exs
@@ -48,7 +48,7 @@ config :phoenix, :stacktrace_depth, 20
 config :phoenix, :plug_init_mode, :runtime
 
 # Default these should point to moonbase alpha since we do all the development testing there
-config :rudder,
+config :refiner,
   operator_private_key: System.get_env("BLOCK_RESULT_OPERATOR_PRIVATE_KEY"),
   bsp_proofchain_address:
     System.get_env("BSP_PROOFCHAIN_ADDRESS", "0x916B54696A70588a716F899bE1e8f2A5fFd5f135"),
diff --git a/lib/refiner/proof_chain/block_specimen_event_listener.ex b/lib/refiner/proof_chain/block_specimen_event_listener.ex
index eeb71a8a..cf6cfd07 100644
--- a/lib/refiner/proof_chain/block_specimen_event_listener.ex
+++ b/lib/refiner/proof_chain/block_specimen_event_listener.ex
@@ -64,7 +64,7 @@ defmodule Refiner.ProofChain.BlockSpecimenEventListener do
       {:ok, [_event_hash, chain_id_raw, block_height_raw, block_hash]} =
         Map.fetch(log_event, "topics")
 
-      [specimen_hash_raw] = Rudder.Util.extract_data(log_event, "(bytes32)")
+      [specimen_hash_raw] = Refiner.Util.extract_data(log_event, "(bytes32)")
 
       # prepare data to generate key
       specimen_hash = Base.encode16(specimen_hash_raw, case: :lower)