diff --git a/lib/settings.js b/lib/settings.js
index 4de0f55..314fc69 100644
--- a/lib/settings.js
+++ b/lib/settings.js
@@ -138,7 +138,7 @@ exports.confirmations = 6;
 //timeouts
 exports.update_timeout = 125;
 exports.check_timeout = 250;
-exports.block_parallel_tasks = 2;
+exports.block_parallel_tasks = 1;
 
 //genesis
 exports.genesis_tx = "dd1d332ad2d8d8f49195056d482ae3c96fd2d16e9d166413b27ca7f19775644c";
diff --git a/settings.json.template b/settings.json.template
index 7c27c35..1d6f74e 100644
--- a/settings.json.template
+++ b/settings.json.template
@@ -49,7 +49,7 @@
   //update script settings
   "update_timeout": 10,
   "check_timeout": 250,
-  "block_parallel_tasks": 2,
+  "block_parallel_tasks": 1,
 
   // wallet settings
   "use_rpc": false,