diff --git a/irctest/server_tests/test_resume.py b/irctest/server_tests/test_resume.py
index 99bf9e6..b88338c 100644
--- a/irctest/server_tests/test_resume.py
+++ b/irctest/server_tests/test_resume.py
@@ -22,7 +22,7 @@ class ResumeTestCase(cases.BaseServerTestCase):
         self.connectClient('bar', capabilities=['batch', 'draft/labeled-response', 'server-time'])
         ms = self.getMessages(1)
 
-        welcome = self.connectClient('baz', capabilities=['batch', 'draft/labeled-response', 'server-time', 'draft/resume-0.4'])
+        welcome = self.connectClient('baz', capabilities=['batch', 'draft/labeled-response', 'server-time', 'draft/resume-0.5'])
         resume_messages = [m for m in welcome if m.command == 'RESUME']
         self.assertEqual(len(resume_messages), 1)
         self.assertEqual(resume_messages[0].params[0], 'TOKEN')
@@ -46,7 +46,7 @@ class ResumeTestCase(cases.BaseServerTestCase):
         bad_token = 'a' * len(token)
         self.addClient()
         self.sendLine(3, 'CAP LS')
-        self.sendLine(3, 'CAP REQ :batch draft/labeled-response server-time draft/resume-0.4')
+        self.sendLine(3, 'CAP REQ :batch draft/labeled-response server-time draft/resume-0.5')
         self.sendLine(3, 'NICK tempnick')
         self.sendLine(3, 'USER tempuser 0 * tempuser')
         self.sendLine(3, ' '.join(('RESUME', bad_token, ANCIENT_TIMESTAMP)))
@@ -62,7 +62,7 @@ class ResumeTestCase(cases.BaseServerTestCase):
 
         self.addClient()
         self.sendLine(4, 'CAP LS')
-        self.sendLine(4, 'CAP REQ :batch draft/labeled-response server-time draft/resume-0.4')
+        self.sendLine(4, 'CAP REQ :batch draft/labeled-response server-time draft/resume-0.5')
         self.sendLine(4, 'NICK tempnick_')
         self.sendLine(4, 'USER tempuser 0 * tempuser')
         # resume with a timestamp in the distant past
@@ -108,10 +108,10 @@ class ResumeTestCase(cases.BaseServerTestCase):
         # test chain-resuming (resuming the resumed connection, using the new token)
         self.addClient()
         self.sendLine(5, 'CAP LS')
-        self.sendLine(5, 'CAP REQ :batch draft/labeled-response server-time draft/resume-0.4')
+        self.sendLine(5, 'CAP REQ :batch draft/labeled-response server-time draft/resume-0.5')
         self.sendLine(5, 'NICK tempnick_')
         self.sendLine(5, 'USER tempuser 0 * tempuser')
-        self.sendLine(5, 'RESUME ' + new_token)
+        self.sendLine(5, 'RESUME ' + new_token + ' ' + ANCIENT_TIMESTAMP)
         ms = self.getMessages(5)
 
         resume_messages = [m for m in ms if m.command == 'RESUME']
@@ -130,7 +130,7 @@ class ResumeTestCase(cases.BaseServerTestCase):
         ms = self.getMessages(1)
         self.joinChannel(1, '#xyz')
 
-        welcome = self.connectClient('baz', capabilities=['batch', 'draft/labeled-response', 'server-time', 'draft/resume-0.4'])
+        welcome = self.connectClient('baz', capabilities=['batch', 'draft/labeled-response', 'server-time', 'draft/resume-0.5'])
         resume_messages = [m for m in welcome if m.command == 'RESUME']
         self.assertEqual(len(resume_messages), 1)
         self.assertEqual(resume_messages[0].params[0], 'TOKEN')
@@ -153,7 +153,7 @@ class ResumeTestCase(cases.BaseServerTestCase):
         self.assertMessageEqual(self.getMessage(1), command=RPL_AWAY, params=['bar', 'baz', 'software upgrade'])
 
         self.addClient(3)
-        self.sendLine(3, 'CAP REQ :batch account-tag message-tags draft/resume-0.4')
+        self.sendLine(3, 'CAP REQ :batch account-tag message-tags draft/resume-0.5')
         self.sendLine(3, ' '.join(('RESUME', token, ANCIENT_TIMESTAMP)))
         ms = self.getMessages(3)