diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3332446..5ef621c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 CHANGELOG
 =========
 
+# v2.2.0
+
+- Unpin unicode-normalization version
+
 # v2.1.0
 
 - Add support for Portuguese as per addition to BIP.
diff --git a/Cargo-minimal.lock b/Cargo-minimal.lock
index 08ec2a6..5b5fcf3 100644
--- a/Cargo-minimal.lock
+++ b/Cargo-minimal.lock
@@ -17,12 +17,12 @@ checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
 
 [[package]]
 name = "bip39"
-version = "2.1.0"
+version = "2.2.0"
 dependencies = [
  "bip39",
  "bitcoin_hashes",
  "rand",
- "rand_core 0.6.4",
+ "rand_core 0.4.2",
  "serde",
  "unicode-normalization",
  "zeroize",
@@ -142,12 +142,6 @@ version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c33a3c44ca05fa6f1807d8e6743f3824e8509beca625669633be0acbdf509dc"
 
-[[package]]
-name = "rand_core"
-version = "0.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
-
 [[package]]
 name = "rand_hc"
 version = "0.1.0"
diff --git a/Cargo.toml b/Cargo.toml
index b0af928..2dabf65 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bip39"
-version = "2.1.0"
+version = "2.2.0"
 authors = ["Steven Roose <steven@stevenroose.org>"]
 license = "CC0-1.0"
 homepage = "https://github.com/rust-bitcoin/rust-bip39/"