diff --git a/flash/__about__.py b/flash/__about__.py
index 0ae18a3a6e..9498434c6d 100644
--- a/flash/__about__.py
+++ b/flash/__about__.py
@@ -1,4 +1,4 @@
-__version__ = "0.5.1dev"
+__version__ = "0.5.1rc0"
 __author__ = "PyTorchLightning et al."
 __author_email__ = "name@pytorchlightning.ai"
 __license__ = "Apache-2.0"