diff --git a/ubuntutools/archive.py b/ubuntutools/archive.py
index b42ef90..b271db7 100644
--- a/ubuntutools/archive.py
+++ b/ubuntutools/archive.py
@@ -591,7 +591,7 @@ class FakeSPPH(object):
             if block.version <= since_version:
                 break
             new_entries.append(str(block))
-        return u''.join(new_entries)
+        return ''.join(new_entries)
 
 
 def rmadison(url, package, suite=None, arch=None):
diff --git a/ubuntutools/lp/lpapicache.py b/ubuntutools/lp/lpapicache.py
index f208a33..11edb15 100644
--- a/ubuntutools/lp/lpapicache.py
+++ b/ubuntutools/lp/lpapicache.py
@@ -577,7 +577,7 @@ class SourcePackagePublishingHistory(BaseWrapper):
             if block.version <= since_version:
                 break
             new_entries.append(str(block))
-        return u''.join(new_entries)
+        return ''.join(new_entries)
 
     def getBinaries(self):
         '''
diff --git a/ubuntutools/requestsync/mail.py b/ubuntutools/requestsync/mail.py
index 5a049d4..729fe60 100644
--- a/ubuntutools/requestsync/mail.py
+++ b/ubuntutools/requestsync/mail.py
@@ -104,7 +104,7 @@ def get_ubuntu_delta_changelog(srcpkg):
     '''
     changelog = Changelog(srcpkg.getChangelog())
     if changelog is None:
-        return u''
+        return ''
     delta = []
     debian_info = DebianDistroInfo()
     for block in changelog:
@@ -114,7 +114,7 @@ def get_ubuntu_delta_changelog(srcpkg):
         delta += [str(change) for change in block.changes()
                   if change.strip()]
 
-    return u'\n'.join(delta)
+    return '\n'.join(delta)
 
 
 def mail_bug(srcpkg, subscribe, status, bugtitle, bugtext, bug_mail_domain,
@@ -164,7 +164,7 @@ def mail_bug(srcpkg, subscribe, status, bugtitle, bugtext, bug_mail_domain,
         sys.exit(1)
 
     # generate email
-    mail = u'''\
+    mail = '''\
 From: %s
 To: %s
 Subject: %s