diff --git a/build.gradle.kts b/build.gradle.kts
index 0269b222..34f81ca1 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -137,6 +137,7 @@ dependencies {
     implementation("software.amazon.awssdk:s3:2.20.157")
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.3")
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-reactor:1.7.3")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-slf4j:1.7.3")
     implementation("dev.usbharu:http-signature:1.0.0")
 
     implementation("io.ktor:ktor-client-logging-jvm:$ktor_version")
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/ap/APNoteService.kt b/src/main/kotlin/dev/usbharu/hideout/service/ap/APNoteService.kt
index 26a6306b..9f4f87e2 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/ap/APNoteService.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/ap/APNoteService.kt
@@ -29,6 +29,7 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Deferred
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.async
+import kotlinx.coroutines.slf4j.MDCContext
 import org.jetbrains.exposed.sql.transactions.experimental.newSuspendedTransaction
 import org.slf4j.LoggerFactory
 import org.springframework.beans.factory.annotation.Qualifier
@@ -43,8 +44,8 @@ interface APNoteService {
 
     @Cacheable("fetchNote")
     fun fetchNoteAsync(url: String, targetActor: String? = null): Deferred<Note> {
-        return CoroutineScope(Dispatchers.IO).async {
-            newSuspendedTransaction {
+        return CoroutineScope(Dispatchers.IO + MDCContext()).async {
+            newSuspendedTransaction(MDCContext()) {
                 fetchNote(url, targetActor)
             }
         }
diff --git a/src/main/kotlin/dev/usbharu/hideout/service/core/ExposedTransaction.kt b/src/main/kotlin/dev/usbharu/hideout/service/core/ExposedTransaction.kt
index bcd95261..f0ed0568 100644
--- a/src/main/kotlin/dev/usbharu/hideout/service/core/ExposedTransaction.kt
+++ b/src/main/kotlin/dev/usbharu/hideout/service/core/ExposedTransaction.kt
@@ -1,18 +1,19 @@
 package dev.usbharu.hideout.service.core
 
+import kotlinx.coroutines.slf4j.MDCContext
 import org.jetbrains.exposed.sql.transactions.experimental.newSuspendedTransaction
 import org.springframework.stereotype.Service
 
 @Service
 class ExposedTransaction : Transaction {
     override suspend fun <T> transaction(block: suspend () -> T): T {
-        return newSuspendedTransaction {
+        return newSuspendedTransaction(MDCContext()) {
             block()
         }
     }
 
     override suspend fun <T> transaction(transactionLevel: Int, block: suspend () -> T): T {
-        return newSuspendedTransaction(transactionIsolation = transactionLevel) {
+        return newSuspendedTransaction(MDCContext(), transactionIsolation = transactionLevel) {
             block()
         }
     }