diff --git a/executor/package.json b/executor/package.json
index ac935c07..a59edbd1 100644
--- a/executor/package.json
+++ b/executor/package.json
@@ -1,7 +1,7 @@
 {
 	"name": "@acala-network/chopsticks-executor",
 	"description": "Chopsticks executor",
-	"version": "0.13.2",
+	"version": "0.13.3",
 	"license": "Apache-2.0",
 	"type": "module",
 	"repository": {
diff --git a/executor/src/lib.rs b/executor/src/lib.rs
index 6cbd183a..7988a783 100644
--- a/executor/src/lib.rs
+++ b/executor/src/lib.rs
@@ -103,7 +103,7 @@ pub async fn get_runtime_version(code: JsValue) -> Result<JsValue, JsError> {
     setup_console(None);
 
     let code = serde_wasm_bindgen::from_value::<HexString>(code)?;
-    let runtime_version = task::runtime_version(code).await;
+    let runtime_version = task::runtime_version(code).await?;
     let result = serde_wasm_bindgen::to_value(&runtime_version)?;
 
     Ok(result)
diff --git a/executor/src/task.rs b/executor/src/task.rs
index 19318226..edc779f1 100644
--- a/executor/src/task.rs
+++ b/executor/src/task.rs
@@ -138,13 +138,16 @@ pub async fn run_task(task: TaskCall, js: crate::JsCallback) -> Result<TaskRespo
     let mut storage_changes: BTreeMap<Vec<u8>, Option<Vec<u8>>> = Default::default();
     let mut offchain_storage_changes: BTreeMap<Vec<u8>, Option<Vec<u8>>> = Default::default();
 
-    let vm_proto = HostVmPrototype::new(Config {
+    let vm_proto = match HostVmPrototype::new(Config {
         module: &task.wasm,
         heap_pages: HeapPages::from(2048),
         exec_hint: smoldot::executor::vm::ExecHint::ValidateAndExecuteOnce,
         allow_unresolved_imports: task.allow_unresolved_imports,
-    })
-    .unwrap();
+    }) {
+        Ok(vm_proto) => vm_proto,
+        Err(e) => return Ok(TaskResponse::Error(e.to_string())),
+    };
+
     let mut ret: Result<Vec<u8>, String> = Ok(Vec::new());
     let mut runtime_logs: Vec<LogInfo> = vec![];
 
@@ -208,9 +211,7 @@ pub async fn run_task(task: TaskCall, js: crate::JsCallback) -> Result<TaskRespo
                     }
                 }
 
-                RuntimeCall::ClosestDescendantMerkleValue(req) => {
-                    req.resume_unknown()
-                }
+                RuntimeCall::ClosestDescendantMerkleValue(req) => req.resume_unknown(),
 
                 RuntimeCall::NextKey(req) => {
                     if req.branch_nodes() {
@@ -415,18 +416,18 @@ pub async fn run_task(task: TaskCall, js: crate::JsCallback) -> Result<TaskRespo
     }))
 }
 
-pub async fn runtime_version(wasm: HexString) -> RuntimeVersion {
+pub async fn runtime_version(wasm: HexString) -> Result<RuntimeVersion, JsError> {
     let vm_proto = HostVmPrototype::new(Config {
         module: &wasm,
         heap_pages: HeapPages::from(2048),
         exec_hint: smoldot::executor::vm::ExecHint::ValidateAndExecuteOnce,
         allow_unresolved_imports: true,
     })
-    .unwrap();
+    .map_err(|e| JsError::new(&e.to_string()))?;
 
     let core_version = vm_proto.runtime_version().decode();
 
-    RuntimeVersion::new(core_version)
+    Ok(RuntimeVersion::new(core_version))
 }
 
 pub fn calculate_state_root(
diff --git a/packages/chopsticks/package.json b/packages/chopsticks/package.json
index 5f264ac0..4c2dc6f4 100644
--- a/packages/chopsticks/package.json
+++ b/packages/chopsticks/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@acala-network/chopsticks",
-	"version": "0.13.2",
+	"version": "0.13.3",
 	"author": "Acala Developers <hello@acala.network>",
 	"license": "Apache-2.0",
 	"bin": "./chopsticks.cjs",
diff --git a/packages/chopsticks/src/server.ts b/packages/chopsticks/src/server.ts
index 17159118..f57e49bc 100644
--- a/packages/chopsticks/src/server.ts
+++ b/packages/chopsticks/src/server.ts
@@ -224,7 +224,7 @@ export const createServer = async (handler: Handler, port: number) => {
           result: resp ?? null,
         }
       } catch (e) {
-        wsLogger.info('Error handling request: %o', (e as Error).stack)
+        wsLogger.error('Error handling request: %o', (e as Error).stack)
         return {
           id: req.id,
           jsonrpc: '2.0',
diff --git a/packages/core/package.json b/packages/core/package.json
index 6e339b98..91f8c51a 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@acala-network/chopsticks-core",
-	"version": "0.13.2",
+	"version": "0.13.3",
 	"author": "Acala Developers <hello@acala.network>",
 	"license": "Apache-2.0",
 	"type": "module",
diff --git a/packages/core/src/wasm-executor/index.ts b/packages/core/src/wasm-executor/index.ts
index 792c3671..e46034a1 100644
--- a/packages/core/src/wasm-executor/index.ts
+++ b/packages/core/src/wasm-executor/index.ts
@@ -129,6 +129,7 @@ export const runTask = async (task: TaskCall, callback: JsCallback = emptyTaskHa
   }
   const worker = await getWorker()
   logger.trace(truncate(task2), 'taskRun')
+
   const response = await worker.remote.runTask(task2, Comlink.proxy(callback))
   if ('Call' in response) {
     logger.trace(truncate(response.Call), 'taskResponse')
diff --git a/packages/db/package.json b/packages/db/package.json
index a6814cf9..dc16f35b 100644
--- a/packages/db/package.json
+++ b/packages/db/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@acala-network/chopsticks-db",
-	"version": "0.13.2",
+	"version": "0.13.3",
 	"author": "Acala Developers <hello@acala.network>",
 	"license": "Apache-2.0",
 	"type": "module",
diff --git a/packages/testing/package.json b/packages/testing/package.json
index cfcecfde..c0d69e18 100644
--- a/packages/testing/package.json
+++ b/packages/testing/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@acala-network/chopsticks-testing",
-	"version": "0.13.2",
+	"version": "0.13.3",
 	"author": "Acala Developers <hello@acala.network>",
 	"license": "Apache-2.0",
 	"type": "module",
diff --git a/packages/utils/package.json b/packages/utils/package.json
index 2ac915d2..aa2d1c86 100644
--- a/packages/utils/package.json
+++ b/packages/utils/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@acala-network/chopsticks-utils",
-	"version": "0.13.2",
+	"version": "0.13.3",
 	"author": "Acala Developers <hello@acala.network>",
 	"license": "Apache-2.0",
 	"type": "module",