diff --git a/Cargo.lock b/Cargo.lock
index 5eadbea88..82c95d0a0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3570,7 +3570,7 @@ dependencies = [
 
 [[package]]
 name = "parity-version"
-version = "4.0.2"
+version = "4.0.3-rc1"
 dependencies = [
  "parity-bytes",
  "rlp",
diff --git a/crates/util/version/Cargo.toml b/crates/util/version/Cargo.toml
index 8737eca0a..47834cca6 100644
--- a/crates/util/version/Cargo.toml
+++ b/crates/util/version/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "parity-version"
 # NOTE: this value is used for OpenEthereum version string (via env CARGO_PKG_VERSION)
-version = "4.0.2"
+version = "4.0.3-rc1"
 authors = [
 	"bit.diamonds developers",
 	"OpenEthereum developers",