diff --git a/CHANGELOG.md b/CHANGELOG.md
index f4b885573..b71c3a908 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 # UNRELEASED
 
+# matrix-sdk-crypto-wasm v9.0.0
+
 **BREAKING CHANGES**
 
 -   The `SenderIdentityNotTrusted` value in the `DecryptionErrorCode` was
diff --git a/package.json b/package.json
index a1578681f..c56c4846b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@matrix-org/matrix-sdk-crypto-wasm",
-    "version": "8.0.0",
+    "version": "9.0.0",
     "homepage": "https://github.com/matrix-org/matrix-rust-sdk-wasm",
     "description": "WebAssembly bindings of the matrix-sdk-crypto encryption library",
     "license": "Apache-2.0",