diff --git a/infra/infra-lambda/build.gradle.kts b/infra/infra-lambda/build.gradle.kts
index 7838d78..4cc46fa 100644
--- a/infra/infra-lambda/build.gradle.kts
+++ b/infra/infra-lambda/build.gradle.kts
@@ -15,5 +15,5 @@ dependencies {
     implementation("org.springframework.boot:spring-boot-starter-data-jpa")
 
     // lambda
-    implementation("org.springframework.cloud:spring-cloud-function-web")
+    implementation("org.springframework.cloud:spring-cloud-function-web:4.1.0")
 }
diff --git a/infra/infra-lambda/src/main/kotlin/com/kw/infralamda/consumer/LambdaConsumer.kt b/infra/infra-lambda/src/main/kotlin/com/kw/infralamda/consumer/LambdaConsumer.kt
index 4fd74c1..df68e72 100644
--- a/infra/infra-lambda/src/main/kotlin/com/kw/infralamda/consumer/LambdaConsumer.kt
+++ b/infra/infra-lambda/src/main/kotlin/com/kw/infralamda/consumer/LambdaConsumer.kt
@@ -30,7 +30,7 @@ class LambdaConsumer(private val questionRepository: QuestionRepository,
     private fun updateBundlesPopularity() {
         val bundles = bundleRepository.findAll()
         bundles.forEach { bundle ->
-            val hours = ChronoUnit.HOURS.between(LocalDateTime.now(), bundle.createdAt).toDouble()
+            val hours = ChronoUnit.HOURS.between(bundle.createdAt, LocalDateTime.now()).toDouble()
             val popularity = getBundlePopularity(bundle, hours)
             bundle.updatePopularity(popularity)
         }
@@ -42,7 +42,7 @@ class LambdaConsumer(private val questionRepository: QuestionRepository,
     private fun updateQuestionPopularity() {
         val questions = questionRepository.findAll()
         questions.forEach { question ->
-            val hours = ChronoUnit.HOURS.between(LocalDateTime.now(), question.createdAt).toDouble()
+            val hours = ChronoUnit.HOURS.between(question.createdAt, LocalDateTime.now()).toDouble()
             val popularity = getQuestionPopularity(question, hours)
             question.updatePopularity(popularity)
         }
diff --git a/infra/infra-lambda/src/main/resources/application.properties b/infra/infra-lambda/src/main/resources/application.properties
deleted file mode 100644
index 3ce70ac..0000000
--- a/infra/infra-lambda/src/main/resources/application.properties
+++ /dev/null
@@ -1 +0,0 @@
-spring.application.name=infra-lamda
diff --git a/infra/infra-lambda/src/main/resources/application.yml b/infra/infra-lambda/src/main/resources/application.yml
new file mode 100644
index 0000000..cfc3fb3
--- /dev/null
+++ b/infra/infra-lambda/src/main/resources/application.yml
@@ -0,0 +1,4 @@
+spring:
+  profiles:
+    include: rdb
+    active: dev