diff --git a/packages/cosmwasm/README.md b/packages/cosmwasm/README.md
index 73a5b37f..b64c6e5d 100644
--- a/packages/cosmwasm/README.md
+++ b/packages/cosmwasm/README.md
@@ -8,6 +8,7 @@ An SDK to build CosmWasm clients.
 
 | CosmWasm | x/wasm | @cosmjs/cosmwasm |
 | -------- | ------ | ---------------- |
+| 0.11     | 0.11   | `^0.23.0`        |
 | 0.10     | 0.10   | `^0.22.0`        |
 | 0.9      | 0.9    | `^0.21.0`        |
 | 0.8      | 0.8    | `^0.20.1`        |
@@ -18,7 +19,7 @@ Updating Hackatom development contract in `src/testdata/contract.json`:
 
 ```sh
 cd packages/cosmwasm
-export HACKATOM_URL=https://github.com/CosmWasm/cosmwasm/releases/download/v0.10.0-alpha2/hackatom.wasm
+export HACKATOM_URL=https://github.com/CosmWasm/cosmwasm/releases/download/v0.11.0-alpha4/hackatom.wasm
 echo "{\"// source\": \"$HACKATOM_URL\", \"data\": \"$(curl -sS  --location $HACKATOM_URL | base64)\" }" | jq > src/testdata/contract.json
 ```