diff --git a/apps/web/src/components/organisms/ProjectCards/index.tsx b/apps/web/src/components/organisms/ProjectCards/index.tsx
index 0f179bc..be1fd13 100644
--- a/apps/web/src/components/organisms/ProjectCards/index.tsx
+++ b/apps/web/src/components/organisms/ProjectCards/index.tsx
@@ -17,16 +17,14 @@ function ProjectCards({ projects }: Props) {
         flag, id, title, thumbnail, skill: skills, name,
       }) => (
         <Link key={id} className={styles.projectCardWrapper} href={`/projects/${id}`}>
-          {thumbnail && (
-            <Image
-              src={thumbnail}
-              alt={name}
-              width="0"
-              height="0"
-              sizes="(max-width: 1204px) 50vw, 33vw"
-              className={styles.thumbnail}
-            />
-          )}
+          <Image
+            src={thumbnail}
+            alt={name}
+            width="0"
+            height="0"
+            sizes="(max-width: 1204px) 50vw, 33vw"
+            className={styles.thumbnail}
+          />
           <div className={styles.contents}>
             <div className={styles.flag}>{flag}</div>
             <div className={styles.name}>{name}</div>
diff --git a/apps/web/src/components/organisms/ProjectsSlider/index.tsx b/apps/web/src/components/organisms/ProjectsSlider/index.tsx
index 76714c6..3f08468 100644
--- a/apps/web/src/components/organisms/ProjectsSlider/index.tsx
+++ b/apps/web/src/components/organisms/ProjectsSlider/index.tsx
@@ -3,17 +3,11 @@ import Marquee from 'react-fast-marquee';
 import Image from 'next/image';
 import Link from 'next/link';
 
-import { type Project } from '@dnd-academy/core';
-
 import { getProjects } from '@/lib/apis/project';
 import blurDataUrl from '@/lib/data/blurDataUrl';
 
 import styles from './index.module.scss';
 
-type ThumbnailProject = Project & {
-  thumbnail: string;
-};
-
 function ProjectsSlider() {
   const projects = getProjects();
 
@@ -22,7 +16,6 @@ function ProjectsSlider() {
       <Marquee pauseOnHover speed={100} className={styles.marquee}>
         <div className={styles.projectSliderWrapper}>
           {[...projects]
-            .filter((project): project is ThumbnailProject => Boolean(project?.thumbnail))
             .slice(0, 20)
             .map(({ id, thumbnail, title }) => (
               <Link key={id} href={`/projects/${id}`} prefetch={false}>
diff --git a/apps/web/src/components/pages/ProjectPage/index.tsx b/apps/web/src/components/pages/ProjectPage/index.tsx
index 195abdd..9b2d3a2 100644
--- a/apps/web/src/components/pages/ProjectPage/index.tsx
+++ b/apps/web/src/components/pages/ProjectPage/index.tsx
@@ -39,21 +39,20 @@ function ProjectPage({ project }: Props) {
       />
       <div className={styles.projectPageContents}>
         <section className={styles.projectDetail}>
-          {project?.pdf && (
+          {project?.pdf ? (
             <div className={styles.pdfWrapper}>
               <PDFViewer url={project.pdf} />
             </div>
-          )}
-          {!project?.pdf && project?.thumbnail && (
-          <div className={styles.thumbnailWrapper}>
-            <Image
-              fill
-              src={project.thumbnail}
-              alt={project.name}
-              className={styles.thumbnail}
-              sizes="(max-width: 768px) 100vw, 768px"
-            />
-          </div>
+          ) : (
+            <div className={styles.thumbnailWrapper}>
+              <Image
+                fill
+                src={project.thumbnail}
+                alt={project.name}
+                className={styles.thumbnail}
+                sizes="(max-width: 768px) 100vw, 768px"
+              />
+            </div>
           )}
           <div className={styles.projectIntroduceTitleWrapper}>
             <div className={styles.header}>
@@ -111,10 +110,12 @@ function ProjectPage({ project }: Props) {
             <div className={styles.description}>{project.desc}</div>
           </div>
         </section>
-        <section className={styles.projectSubSection}>
-          <h2>참가자</h2>
-          <ReviewList reviews={reviews} hasProjectLink={false} />
-        </section>
+        {reviews.length > 0 && (
+          <section className={styles.projectSubSection}>
+            <h2>참가자</h2>
+            <ReviewList reviews={reviews} hasProjectLink={false} />
+          </section>
+        )}
         <section className={styles.projectSubSection}>
           <h2>프로젝트 더보기</h2>
           <ProjectCards
diff --git a/apps/web/src/lib/assets/data/projects.json b/apps/web/src/lib/assets/data/projects.json
index 5a2298e..ca87ac2 100644
--- a/apps/web/src/lib/assets/data/projects.json
+++ b/apps/web/src/lib/assets/data/projects.json
@@ -2038,8 +2038,8 @@
       "Mockito",
       "Git"
     ],
-    "thumbnail": "",
-    "pdf": "",
+    "thumbnail": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/images/project/11/1/1.png",
+    "pdf": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/files/project/11/1/1.pdf",
     "projectLinks": {
       "appStore": "",
       "github": [
@@ -2081,8 +2081,8 @@
       "Docker",
       "Test Container"
     ],
-    "thumbnail": "",
-    "pdf": "",
+    "thumbnail": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/images/project/11/3/3.png",
+    "pdf": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/files/project/11/3/3.pdf",
     "projectLinks": {
       "appStore": "",
       "github": [
@@ -2112,7 +2112,7 @@
       "Figma",
       "Blender"
     ],
-    "thumbnail": "",
+    "thumbnail": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/images/project/11/4/4.png",
     "pdf": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/files/project/11/4/4.pdf",
     "projectLinks": {
       "appStore": "",
@@ -2150,8 +2150,8 @@
       "GIthub Action",
       "TailwindCSS"
     ],
-    "thumbnail": "",
-    "pdf": "",
+    "thumbnail": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/images/project/11/5/5.png",
+    "pdf": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/files/project/11/5/5.pdf",
     "projectLinks": {
       "appStore": "",
       "github": [
@@ -2175,7 +2175,7 @@
       "TanstackQuery",
       "TailwindCss"
     ],
-    "thumbnail": "",
+    "thumbnail": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/images/project/11/6/6.png",
     "pdf": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/files/project/11/6/6.pdf",
     "projectLinks": {
       "appStore": "",
@@ -2238,8 +2238,8 @@
       "figma",
       "c4d"
     ],
-    "thumbnail": "",
-    "pdf": "",
+    "thumbnail": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/images/project/11/9/9.png",
+    "pdf": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/files/project/11/9/9.pdf",
     "projectLinks": {
       "appStore": "",
       "github": [
@@ -2289,7 +2289,7 @@
       "Docker",
       "Github Actions"
     ],
-    "thumbnail": "",
+    "thumbnail": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/images/project/11/10/10.png",
     "pdf": "https://dnd-academy-v3.s3.ap-northeast-2.amazonaws.com/files/project/11/10/10.pdf",
     "projectLinks": {
       "appStore": "",
diff --git a/packages/core/src/@types/project.ts b/packages/core/src/@types/project.ts
index 31967cb..8041d61 100644
--- a/packages/core/src/@types/project.ts
+++ b/packages/core/src/@types/project.ts
@@ -12,7 +12,7 @@ export interface Project {
   images?: string[];
   flag: ProjectFlag;
   skill: string[];
-  thumbnail?: string;
+  thumbnail: string;
   pdf: string | null;
   projectLinks: ProjectLinks;
 }