diff --git a/crates/isolate/src/environment/action/mod.rs b/crates/isolate/src/environment/action/mod.rs
index 5774d5e0..ce4de45e 100644
--- a/crates/isolate/src/environment/action/mod.rs
+++ b/crates/isolate/src/environment/action/mod.rs
@@ -1105,11 +1105,16 @@ impl<RT: Runtime> ActionEnvironment<RT> {
                                 .remove(&task_id) else {
                                     anyhow::bail!("Task with id {} did not have a promise", task_id);
                                 };
+                            let mut result_scope = v8::HandleScope::new(&mut **scope);
                             let result_v8 = match variant {
-                                Ok(v) => Ok(v.into_v8(scope)?),
+                                Ok(v) => Ok(v.into_v8(&mut result_scope)?),
                                 Err(e) => Err(e),
                             };
-                            resolve_promise_allow_all_errors(scope, resolver, result_v8)?;
+                            resolve_promise_allow_all_errors(
+                                &mut result_scope,
+                                resolver,
+                                result_v8,
+                            )?;
                         },
                     };
                 },
diff --git a/crates/isolate/src/environment/udf/mod.rs b/crates/isolate/src/environment/udf/mod.rs
index da62d67e..1ae41954 100644
--- a/crates/isolate/src/environment/udf/mod.rs
+++ b/crates/isolate/src/environment/udf/mod.rs
@@ -738,11 +738,12 @@ impl<RT: Runtime> DatabaseUdfEnvironment<RT> {
             // Complete the syscall's promise, which will put its handlers on the microtask
             // queue.
             for (resolver, result) in resolvers.into_iter().zip(results.into_iter()) {
+                let mut result_scope = v8::HandleScope::new(&mut *scope);
                 let result_v8 = match result {
-                    Ok(v) => Ok(serde_v8::to_v8(&mut scope, v)?),
+                    Ok(v) => Ok(serde_v8::to_v8(&mut result_scope, v)?),
                     Err(e) => Err(e),
                 };
-                resolve_promise(&mut scope, resolver, result_v8)?;
+                resolve_promise(&mut result_scope, resolver, result_v8)?;
             }
             handle.check_terminated()?;
         }