diff --git a/Cargo.toml b/Cargo.toml
index 8d6fd59f..7a72cda9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rand_core"
-version = "0.9.3"
+version = "0.10.0-rc-1"
 authors = ["The Rand Project Developers", "The Rust Project Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"