diff --git a/tools/utils.py b/tools/utils.py
index 4b84f58..252be60 100644
--- a/tools/utils.py
+++ b/tools/utils.py
@@ -678,13 +678,13 @@
                             configuration)
         if (configuration_format_version != 3 and
                 configuration_format_version != 5 and
-                configuration_format_version != (200 if is_for_maven else 100)):
+                configuration_format_version != (200 if is_for_maven else 101)):
             raise Exception(
                 'Unsupported "configuration_format_version" "%s" found in %s' %
                 (configuration_format_version, configuration))
         version = configuration_json.get('version')
         if not version:
-            if configuration_format_version == (200 if is_for_maven else 100):
+            if configuration_format_version == (200 if is_for_maven else 101):
                 identifier = configuration_json.get('identifier')
                 if not identifier:
                     raise Exception('No "identifier" found in ' + configuration)
@@ -704,7 +704,7 @@
             else:
                 raise Exception('No "version" found in ' + configuration)
         else:
-            if configuration_format_version == (200 if is_for_maven else 100):
+            if configuration_format_version == (200 if is_for_maven else 101):
                 raise Exception('No "version" expected in ' + configuration)
         # Disallow prerelease, as older R8 versions cannot parse it causing hard to
         # understand errors.