diff --git a/configs/coins/ethereum_archive.json b/configs/coins/ethereum_archive.json
index 17d258ef..8d7fc12f 100644
--- a/configs/coins/ethereum_archive.json
+++ b/configs/coins/ethereum_archive.json
@@ -43,7 +43,7 @@
     "internal_binding_template": ":{{.Ports.BlockbookInternal}}",
     "public_binding_template": ":{{.Ports.BlockbookPublic}}",
     "explorer_url": "",
-    "additional_params": "",
+    "additional_params": "-workers=16",
     "block_chain": {
       "parse": true,
       "mempool_workers": 8,
diff --git a/configs/coins/ethereum_testnet_ropsten_archive.json b/configs/coins/ethereum_testnet_ropsten_archive.json
index 02ea50d8..f109bc02 100644
--- a/configs/coins/ethereum_testnet_ropsten_archive.json
+++ b/configs/coins/ethereum_testnet_ropsten_archive.json
@@ -42,7 +42,7 @@
     "internal_binding_template": ":{{.Ports.BlockbookInternal}}",
     "public_binding_template": ":{{.Ports.BlockbookPublic}}",
     "explorer_url": "",
-    "additional_params": "",
+    "additional_params": "-workers=16",
     "block_chain": {
       "parse": true,
       "mempool_workers": 8,