Merge branch 'objmagic/limit-msg-size' into 0.15.1.1-rc
diff --git a/heron/tools/cli/src/python/update.py b/heron/tools/cli/src/python/update.py
index 202f13a..0b107d0 100644
--- a/heron/tools/cli/src/python/update.py
+++ b/heron/tools/cli/src/python/update.py
@@ -35,7 +35,7 @@
   args.add_topology(parser)
 
   def parallelism_type(value):
-    pattern = re.compile(r"^[\w-]+:[\d]+$")
+    pattern = re.compile(r"^[\w\.-]+:[\d]+$")
     if not pattern.match(value):
       raise argparse.ArgumentTypeError(
           'Invalid syntax for component parallelism (<component_name>:<value>): %s' % value)