diff --git a/Cargo.lock b/Cargo.lock
index ac9536a6..8768221e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -220,7 +220,7 @@ name = "cipher"
 version = "0.5.0-pre.6"
 dependencies = [
  "blobby",
- "crypto-common 0.2.0-rc.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crypto-common 0.2.0-rc.0",
  "inout 0.2.0-rc.0",
  "zeroize",
 ]
diff --git a/cipher/Cargo.toml b/cipher/Cargo.toml
index fb2536eb..d677c951 100644
--- a/cipher/Cargo.toml
+++ b/cipher/Cargo.toml
@@ -13,7 +13,7 @@ keywords = ["crypto", "block-cipher", "stream-cipher", "trait"]
 categories = ["cryptography", "no-std"]
 
 [dependencies]
-crypto-common = "0.2.0-rc.0"
+crypto-common = { path = "../crypto-common/", version = "0.2.0-rc.0" }
 inout = "0.2.0-rc.0"
 
 # optional dependencies
diff --git a/cipher/src/lib.rs b/cipher/src/lib.rs
index 032e05da..d9d4fa1e 100644
--- a/cipher/src/lib.rs
+++ b/cipher/src/lib.rs
@@ -42,13 +42,7 @@ pub mod stream;
 pub use crypto_common::{
     array,
     typenum::{self, consts},
-    AlgorithmName, Block, BlockSizeUser, InnerIvInit, InvalidLength, Iv, IvSizeUser, Key, KeyInit,
-    KeyIvInit, KeySizeUser, ParBlocks, ParBlocksSizeUser,
+    AlgorithmName, Block, BlockSizeUser, InnerIvInit, InvalidLength, Iv, IvSizeUser, IvState, Key,
+    KeyInit, KeyIvInit, KeySizeUser, ParBlocks, ParBlocksSizeUser,
 };
 pub use inout::{InOut, InOutBuf};
-
-/// Trait for loading current IV state.
-pub trait IvState: IvSizeUser {
-    /// Returns current IV state.
-    fn iv_state(&self) -> Iv<Self>;
-}
diff --git a/crypto-common/src/lib.rs b/crypto-common/src/lib.rs
index 712fcf49..bd62fade 100644
--- a/crypto-common/src/lib.rs
+++ b/crypto-common/src/lib.rs
@@ -305,6 +305,12 @@ pub trait InnerIvInit: InnerUser + IvSizeUser + Sized {
     }
 }
 
+/// Trait for loading current IV state.
+pub trait IvState: IvSizeUser {
+    /// Returns current IV state.
+    fn iv_state(&self) -> Iv<Self>;
+}
+
 impl<T> KeySizeUser for T
 where
     T: InnerUser,