diff --git a/Cargo.lock b/Cargo.lock
index 81a07907..11fa33a1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -47,7 +47,7 @@ dependencies = [
 
 [[package]]
 name = "blake2"
-version = "0.11.0-pre.3"
+version = "0.11.0-pre.4"
 dependencies = [
  "base16ct",
  "digest",
diff --git a/blake2/Cargo.toml b/blake2/Cargo.toml
index 76950cac..6245f8b3 100644
--- a/blake2/Cargo.toml
+++ b/blake2/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "blake2"
-version = "0.11.0-pre.3"
+version = "0.11.0-pre.4"
 description = "BLAKE2 hash functions"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"