--- a/mozilla/release-thunderbird-comm-beta.py
+++ b/mozilla/release-thunderbird-comm-beta.py
@@ -20,17 +20,17 @@ releaseConfig['messagePrefix']       = '
 releaseConfig['productName']         = 'thunderbird'
 releaseConfig['stage_product']       = 'thunderbird'
 releaseConfig['appName']             = 'mail'
 releaseConfig['mozilla_srcdir']      = 'mozilla'
 #  Current version info
 releaseConfig['version']             = '38.0b4'
 releaseConfig['appVersion']          = '38.0'
 releaseConfig['milestone']           = releaseConfig['appVersion']
-releaseConfig['buildNumber']         = 4
+releaseConfig['buildNumber']         = 5
 releaseConfig['baseTag']             = 'THUNDERBIRD_38_0b4'
 releaseConfig['partialUpdates']      = {
 
     '38.0b3': {
         'appVersion': '38.0',
         'buildNumber': 2,
         'baseTag': 'THUNDERBIRD_38_0b3',
     },
@@ -51,17 +51,17 @@ releaseConfig['partialUpdates']      = {
 #  Next (nightly) version info
 releaseConfig['nextAppVersion']      = releaseConfig['appVersion']
 releaseConfig['nextMilestone']       = releaseConfig['milestone']
 #  Repository configuration, for tagging
 releaseConfig['sourceRepositories']  = {
     'comm': {
         'name': 'comm-beta',
         'path': 'releases/comm-beta',
-        'revision': 'f2c4bf11a49e',
+        'revision': 'bee77485f1bf',
         'relbranch': None,
         'bumpFiles': {
             'mail/config/version.txt': {
                 'version': releaseConfig['appVersion'],
                 'nextVersion': releaseConfig['nextAppVersion']
             },
         }
     },