diff --git a/.github/workflows/github-actions-dev.yml b/.github/workflows/github-actions-dev.yml
index cf3f5c9..0940ca3 100644
--- a/.github/workflows/github-actions-dev.yml
+++ b/.github/workflows/github-actions-dev.yml
@@ -2,7 +2,7 @@ name: CI & CD for dodal-dev
 
 on:
   push:
-    branches: [ "bug/#123" ]
+    branches: [ "feat/#125" ]
 
 
 env:
diff --git a/src/main/java/com/dodal/meet/controller/request/challengeroom/ChallengeFeedCreateRequest.java b/src/main/java/com/dodal/meet/controller/request/challengeroom/ChallengeFeedCreateRequest.java
index 5ab3ac1..d07b860 100644
--- a/src/main/java/com/dodal/meet/controller/request/challengeroom/ChallengeFeedCreateRequest.java
+++ b/src/main/java/com/dodal/meet/controller/request/challengeroom/ChallengeFeedCreateRequest.java
@@ -21,7 +21,7 @@ public class ChallengeFeedCreateRequest {
     @Schema(description = "인증 이미지 url", example = "https://dodal-bucket.s3.ap-northeast-2.amazonaws.com")
     private String certificationImgUrl;
 
-    @Size(min = 1, max = 100, message = "content는 1자 ~ 100자 사이여야 합니다.")
+    @Size(max = 100, message = "content는 100자 이내여야 합니다.")
     @Schema(description =  "인증설명 글", example = "인증합니다.")
     private String content;
 }
diff --git a/src/main/java/com/dodal/meet/model/entity/ChallengeFeedEntity.java b/src/main/java/com/dodal/meet/model/entity/ChallengeFeedEntity.java
index c466cd3..87bad30 100644
--- a/src/main/java/com/dodal/meet/model/entity/ChallengeFeedEntity.java
+++ b/src/main/java/com/dodal/meet/model/entity/ChallengeFeedEntity.java
@@ -30,7 +30,7 @@ public class ChallengeFeedEntity extends BaseTime {
     @Column(nullable = false, length = 255)
     private String certImgUrl;
 
-    @Column(nullable = false, length = 100)
+    @Column(nullable = true, length = 100)
     private String certContent;
 
     @Column(nullable = false, length = 16)
diff --git a/src/main/java/com/dodal/meet/model/entity/ChallengeRoomEntity.java b/src/main/java/com/dodal/meet/model/entity/ChallengeRoomEntity.java
index 7921bf6..21d01af 100644
--- a/src/main/java/com/dodal/meet/model/entity/ChallengeRoomEntity.java
+++ b/src/main/java/com/dodal/meet/model/entity/ChallengeRoomEntity.java
@@ -31,7 +31,6 @@ public class ChallengeRoomEntity extends BaseTime {
     @Column(nullable = false, length = 16)
     private String hostNickname;
 
-    @Column(nullable = false, length = 255)
     private String hostProfileUrl;
 
     @Column(nullable = false, length = 255)