diff --git a/tests/testerrors.nim b/tests/testerrors.nim
index 7fe4d46..237c824 100644
--- a/tests/testerrors.nim
+++ b/tests/testerrors.nim
@@ -6,11 +6,11 @@
 import unittest, debugclient, ../json_rpc/rpcserver
 import strformat, chronicles
 
-var server = newRpcSocketServer("localhost", 8547.Port)
+var server = newRpcSocketServer("localhost", Port(8545))
 var client = newRpcSocketClient()
 
 server.start()
-waitFor client.connect("localhost", Port(8547))
+waitFor client.connect("localhost", Port(8545))
 
 server.rpc("rpc") do(a: int, b: int):
   result = %(&"a: {a}, b: {b}")
diff --git a/tests/testethcalls.nim b/tests/testethcalls.nim
index 93f293a..deb0177 100644
--- a/tests/testethcalls.nim
+++ b/tests/testethcalls.nim
@@ -7,7 +7,7 @@ from strutils import rsplit
 template sourceDir: string = currentSourcePath.rsplit(DirSep, 1)[0]
 
 var
-  server = newRpcSocketServer("localhost", Port(8546))
+  server = newRpcSocketServer("localhost", Port(8545))
   client = newRpcSocketClient()
 
 ## Generate Ethereum server RPCs
@@ -49,7 +49,7 @@ proc testSigCalls: Future[seq[string]] =
   result = all(version, sha3)
 
 server.start()
-waitFor client.connect("localhost", Port(8546))
+waitFor client.connect("localhost", Port(8545))
 
 
 suite "Local calls":
diff --git a/tests/testserverclient.nim b/tests/testserverclient.nim
index e2fed8e..381a71a 100644
--- a/tests/testserverclient.nim
+++ b/tests/testserverclient.nim
@@ -1,7 +1,7 @@
 import unittest, json, chronicles
 import  ../json_rpc/[rpcclient, rpcserver]
 
-var srv = newRpcSocketServer(["localhost:8546"])
+var srv = newRpcSocketServer(["localhost:8545"])
 var client = newRpcSocketClient()
 
 # Create RPC on server
@@ -9,7 +9,7 @@ srv.rpc("myProc") do(input: string, data: array[0..3, int]):
   result = %("Hello " & input & " data: " & $data)
 
 srv.start()
-waitFor client.connect("localhost", Port(8546))
+waitFor client.connect("localhost", Port(8545))
 
 # TODO: When an error occurs during a test, stop the server
 suite "Server/Client RPC":