diff --git a/Lib/idlelib/idlever.py b/Lib/idlelib/idlever.py
index 7ed0628..dd3726c 100644
--- a/Lib/idlelib/idlever.py
+++ b/Lib/idlelib/idlever.py
@@ -1 +1 @@
-IDLE_VERSION = "3.1b1"
+IDLE_VERSION = "3.1rc1"