diff --git a/Cargo.lock b/Cargo.lock
index b910d517..be955043 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -199,7 +199,7 @@ dependencies = [
 
 [[package]]
 name = "cipher"
-version = "0.5.0-pre.5"
+version = "0.5.0-pre.6"
 dependencies = [
  "blobby",
  "crypto-common 0.2.0-rc.0 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/cipher/Cargo.toml b/cipher/Cargo.toml
index 85c7605a..044e84b4 100644
--- a/cipher/Cargo.toml
+++ b/cipher/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "cipher"
 description = "Traits for describing block ciphers and stream ciphers"
-version = "0.5.0-pre.5"
+version = "0.5.0-pre.6"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"