diff --git a/packages/orchestrator/src/services/contract-simulate/index.ts b/packages/orchestrator/src/services/contract-simulate/index.ts
index 61e0674..c391966 100644
--- a/packages/orchestrator/src/services/contract-simulate/index.ts
+++ b/packages/orchestrator/src/services/contract-simulate/index.ts
@@ -97,6 +97,12 @@ class ContractSimulator {
 
   static async loadStateAndCode(fileName: string, contractAddress: string) {
     const code = readFileSync(path.join(__dirname, `wasm/${fileName}.wasm`));
+    const oldCode = readFileSync(
+      path.join(
+        os.homedir(),
+        `${env.server.storageDirName}/data/final/${contractAddress}`
+      )
+    );
     const state = readFileSync(
       path.join(
         os.homedir(),
@@ -105,7 +111,7 @@ class ContractSimulator {
     );
     const { codeId } = await this.simulateClient.upload(
       this.sender,
-      code,
+      oldCode,
       "auto"
     );
     const raw = SortedMap.rawPack(
@@ -113,7 +119,7 @@ class ContractSimulator {
       compare
     );
     await this.simulateClient.loadContract(
-      env.cosmos.appBitcoin,
+      contractAddress,
       {
         codeId: codeId,
         admin: this.sender,
@@ -123,6 +129,18 @@ class ContractSimulator {
       },
       raw
     );
+    const { codeId: newCodeId } = await this.simulateClient.upload(
+      this.sender,
+      code,
+      "auto"
+    );
+    await this.simulateClient.migrate(
+      this.sender,
+      contractAddress,
+      newCodeId,
+      {},
+      "auto"
+    );
   }
 
   static copyFolderContents = (source: string, destination: string) => {
diff --git a/packages/orchestrator/src/services/contract-simulate/wasm/cw-app-bitcoin.wasm b/packages/orchestrator/src/services/contract-simulate/wasm/cw-app-bitcoin.wasm
index 369789f..90ed159 100644
Binary files a/packages/orchestrator/src/services/contract-simulate/wasm/cw-app-bitcoin.wasm and b/packages/orchestrator/src/services/contract-simulate/wasm/cw-app-bitcoin.wasm differ
diff --git a/packages/orchestrator/src/services/signer/index.ts b/packages/orchestrator/src/services/signer/index.ts
index 78b0cfb..85cbed8 100644
--- a/packages/orchestrator/src/services/signer/index.ts
+++ b/packages/orchestrator/src/services/signer/index.ts
@@ -128,6 +128,7 @@ class SignerService implements RelayerInterface {
         }
       } catch (err) {
         this.logger.error(`[START_CHECKPOINT_SIGNING] Error:`, err);
+        console.log(err);
       }
 
       await setTimeout(ITERATION_DELAY.RELAY_SIGNATURES_INTERVAL);