diff --git a/apps/chat2/config_chat2.nim b/apps/chat2/config_chat2.nim
index a23683e93..c847ed406 100644
--- a/apps/chat2/config_chat2.nim
+++ b/apps/chat2/config_chat2.nim
@@ -322,8 +322,8 @@ proc parseCmdArg*(T: type EthRpcUrl, s: string): T =
   ## https://url:port/path?query
   ## disallowed patterns:
   ## any valid/invalid ws or wss url
-  var httpPattern = re2"^(https?:\/\/)(?:w{1,3}\.)?[^\s.]+(?:\.[a-z]+)*(?::\d+)?(?![^<]*(?:<\/\w+>|\/?>))"
-  var wsPattern =   re2"^(wss?:\/\/)(?:w{1,3}\.)?[^\s.]+(?:\.[a-z]+)*(?::\d+)?(?![^<]*(?:<\/\w+>|\/?>))"
+  var httpPattern = re2"^(https?):\/\/((localhost)|([\w_-]+(?:(?:\.[\w_-]+)+)))(:[0-9]{1,5})?([\w.,@?^=%&:\/~+#-]*[\w@?^=%&\/~+#-])*"
+  var wsPattern =   re2"^(wss?):\/\/((localhost)|([\w_-]+(?:(?:\.[\w_-]+)+)))(:[0-9]{1,5})?([\w.,@?^=%&:\/~+#-]*[\w@?^=%&\/~+#-])*"
   if regex.match(s, wsPattern):
     raise newException(ValueError, "Websocket RPC URL is not supported, Please use an HTTP URL")
   if not regex.match(s, httpPattern):
diff --git a/apps/networkmonitor/networkmonitor_config.nim b/apps/networkmonitor/networkmonitor_config.nim
index cb0641821..a1c83ba94 100644
--- a/apps/networkmonitor/networkmonitor_config.nim
+++ b/apps/networkmonitor/networkmonitor_config.nim
@@ -133,8 +133,8 @@ proc parseCmdArg*(T: type EthRpcUrl, s: string): T =
   ## https://url:port/path?query
   ## disallowed patterns:
   ## any valid/invalid ws or wss url
-  var httpPattern = re2"^(https?:\/\/)(?:w{1,3}\.)?[^\s.]+(?:\.[a-z]+)*(?::\d+)?(?![^<]*(?:<\/\w+>|\/?>))"
-  var wsPattern =   re2"^(wss?:\/\/)(?:w{1,3}\.)?[^\s.]+(?:\.[a-z]+)*(?::\d+)?(?![^<]*(?:<\/\w+>|\/?>))"
+  var httpPattern = re2"^(https?):\/\/((localhost)|([\w_-]+(?:(?:\.[\w_-]+)+)))(:[0-9]{1,5})?([\w.,@?^=%&:\/~+#-]*[\w@?^=%&\/~+#-])*"
+  var wsPattern =   re2"^(wss?):\/\/((localhost)|([\w_-]+(?:(?:\.[\w_-]+)+)))(:[0-9]{1,5})?([\w.,@?^=%&:\/~+#-]*[\w@?^=%&\/~+#-])*"
   if regex.match(s, wsPattern):
     echo "here"
     raise newException(ValueError, "Websocket RPC URL is not supported, Please use an HTTP URL")
diff --git a/apps/wakunode2/external_config.nim b/apps/wakunode2/external_config.nim
index 82ed60bc8..72bd64a17 100644
--- a/apps/wakunode2/external_config.nim
+++ b/apps/wakunode2/external_config.nim
@@ -619,8 +619,8 @@ proc parseCmdArg*(T: type EthRpcUrl, s: string): T =
   ## https://url:port/path?query
   ## disallowed patterns:
   ## any valid/invalid ws or wss url
-  var httpPattern = re2"^(https?:\/\/)(?:w{1,3}\.)?[^\s.]+(?:\.[a-z]+)*(?::\d+)?(?![^<]*(?:<\/\w+>|\/?>))"
-  var wsPattern =   re2"^(wss?:\/\/)(?:w{1,3}\.)?[^\s.]+(?:\.[a-z]+)*(?::\d+)?(?![^<]*(?:<\/\w+>|\/?>))"
+  var httpPattern = re2"^(https?):\/\/((localhost)|([\w_-]+(?:(?:\.[\w_-]+)+)))(:[0-9]{1,5})?([\w.,@?^=%&:\/~+#-]*[\w@?^=%&\/~+#-])*"
+  var wsPattern =   re2"^(wss?):\/\/((localhost)|([\w_-]+(?:(?:\.[\w_-]+)+)))(:[0-9]{1,5})?([\w.,@?^=%&:\/~+#-]*[\w@?^=%&\/~+#-])*"
   if regex.match(s, wsPattern):
     raise newException(ValueError, "Websocket RPC URL is not supported, Please use an HTTP URL")
   if not regex.match(s, httpPattern):