diff --git a/build.gradle b/build.gradle
index 3a4c0e0..a9585be 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,7 +10,7 @@ springBoot {
 }
 
 group = 'com.linglevel'
-version = '3.1.1-SNAPSHOT'
+version = '3.1.2-SNAPSHOT'
 
 java {
 	toolchain {
diff --git a/src/main/java/com/linglevel/api/content/feed/service/FeedCrawlingService.java b/src/main/java/com/linglevel/api/content/feed/service/FeedCrawlingService.java
index 12972ee..dc0ac75 100644
--- a/src/main/java/com/linglevel/api/content/feed/service/FeedCrawlingService.java
+++ b/src/main/java/com/linglevel/api/content/feed/service/FeedCrawlingService.java
@@ -113,6 +113,12 @@ private Feed convertEntryToFeed(SyndEntry entry, FeedSource feedSource) {
             // 발행일 추출
             Instant publishedAt = extractPublishedDate(entry);
 
+            // 필수 필드 검증: thumbnailUrl이 null이면 null 반환 (소프트 딜리트 처리됨)
+            if (thumbnailUrl == null) {
+                log.warn("RSS entry missing thumbnailUrl: {}", url);
+                return null;
+            }
+
             // 작성자 추출
             String author = entry.getAuthor();