diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5bda647d62..0c6608d5ec 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@
 - [#5809](https://github.com/blockscout/blockscout/pull/5809) - Fix 404 on `/metadata` page
 - [#5807](https://github.com/blockscout/blockscout/pull/5807) - Update Makefile migrate command due to release build
 - [#5786](https://github.com/blockscout/blockscout/pull/5786) - Replace `current_path` with `Controller.current_full_path` in two controllers
+- [#5948](https://github.com/blockscout/blockscout/pull/5948) - Fix unexpected messages in `CoinBalanceOnDemand`
 
 ### Chore
 - [#5869](https://github.com/blockscout/blockscout/pull/5869) - Bump reduce-reducers from 0.4.3 to 1.0.4 in /apps/block_scout_web/assets
diff --git a/apps/indexer/lib/indexer/fetcher/coin_balance_on_demand.ex b/apps/indexer/lib/indexer/fetcher/coin_balance_on_demand.ex
index ac02a8f2d2..68306347ed 100644
--- a/apps/indexer/lib/indexer/fetcher/coin_balance_on_demand.ex
+++ b/apps/indexer/lib/indexer/fetcher/coin_balance_on_demand.ex
@@ -64,10 +64,12 @@ defmodule Indexer.Fetcher.CoinBalanceOnDemand do
     GenServer.start_link(__MODULE__, json_rpc_named_arguments, server_opts)
   end
 
+  @impl true
   def init(json_rpc_named_arguments) do
     {:ok, %{json_rpc_named_arguments: json_rpc_named_arguments}}
   end
 
+  @impl true
   def handle_cast({:fetch_and_update, block_number, address}, state) do
     result = fetch_and_update(block_number, address, state.json_rpc_named_arguments)
 
@@ -78,18 +80,30 @@ defmodule Indexer.Fetcher.CoinBalanceOnDemand do
     {:noreply, state}
   end
 
+  @impl true
   def handle_cast({:fetch_and_import, block_number, address}, state) do
     fetch_and_import(block_number, address, state.json_rpc_named_arguments)
 
     {:noreply, state}
   end
 
+  @impl true
   def handle_cast({:fetch_and_import_daily_balances, block_number, address}, state) do
     fetch_and_import_daily_balances(block_number, address, state.json_rpc_named_arguments)
 
     {:noreply, state}
   end
 
+  @impl true
+  def handle_info({:DOWN, _, :process, _, _}, state) do
+    {:noreply, state}
+  end
+
+  @impl true
+  def handle_info({_ref, _}, state) do
+    {:noreply, state}
+  end
+
   ## Implementation
 
   defp do_trigger_fetch(%Address{fetched_coin_balance_block_number: nil} = address, latest_block_number, _) do