diff --git a/packages/sdk/src/signingcosmwasmclient.spec.ts b/packages/sdk/src/signingcosmwasmclient.spec.ts
index b7130d3a..a8abbfeb 100644
--- a/packages/sdk/src/signingcosmwasmclient.spec.ts
+++ b/packages/sdk/src/signingcosmwasmclient.spec.ts
@@ -143,7 +143,7 @@ describe("SigningCosmWasmClient", () => {
       );
 
       // execute
-      const result = await client.execute(contractAddress, {}, undefined);
+      const result = await client.execute(contractAddress, {release:{}}, undefined);
       const [firstLog] = result.logs;
       expect(firstLog.log).toEqual(`released funds to ${beneficiaryAddress}`);
 
diff --git a/packages/sdk/src/testutils.spec.ts b/packages/sdk/src/testutils.spec.ts
index 20b5a1d2..f9278ec1 100644
--- a/packages/sdk/src/testutils.spec.ts
+++ b/packages/sdk/src/testutils.spec.ts
@@ -27,6 +27,8 @@ export function leb128Encode(uint: number): Uint8Array {
 
 export function getRandomizedHackatom(): Uint8Array {
   const data = Encoding.fromBase64(hackatom.data);
+  // TODO: this needs to be redone!
+
   // The return value of the export function cosmwasm_api_0_6 is unused and
   // can be randomized for testing.
   //
diff --git a/scripts/wasmd/env b/scripts/wasmd/env
index f2eb21ba..e86a31c0 100644
--- a/scripts/wasmd/env
+++ b/scripts/wasmd/env
@@ -1,5 +1,5 @@
 # Choose from https://hub.docker.com/r/cosmwasm/wasmd-demo/tags
 REPOSITORY="cosmwasm/wasmd-demo"
-VERSION="latest"
+VERSION="v0.7.0-rc1"
 
 CONTAINER_NAME="wasmd"