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diff --git a/src/app/components/SessionSection/SessionDialog.tsx b/src/app/components/SessionSection/SessionDialog.tsx
index 56df894..5b77988 100644
--- a/src/app/components/SessionSection/SessionDialog.tsx
+++ b/src/app/components/SessionSection/SessionDialog.tsx
@@ -46,7 +46,7 @@ export default function SessionDialog({
                   alt={session.speaker.name}
                   width={40}
                   height={40}
-                  className="rounded-full"
+                  className="aspect-square rounded-full object-cover"
                 />
                 <div>
                   <p className="text-sm/6 text-white/80">
diff --git a/src/app/components/SessionSection/SessionList.tsx b/src/app/components/SessionSection/SessionList.tsx
index 12f0d8c..319ebcf 100644
--- a/src/app/components/SessionSection/SessionList.tsx
+++ b/src/app/components/SessionSection/SessionList.tsx
@@ -99,7 +99,7 @@ export default function SectionList() {
                           <div className="flex gap-2" aria-hidden="true">
                             <div className="relative size-6 shrink-0">
                               <Image
-                                className="aspect-square shrink-0 rounded-full"
+                                className="aspect-square shrink-0 rounded-full object-cover"
                                 src={session.speaker.image}
                                 alt={session.speaker.name}
                                 fill
diff --git a/src/app/constants/session.ts b/src/app/constants/session.ts
index 1063f1e..736d7ce 100644
--- a/src/app/constants/session.ts
+++ b/src/app/constants/session.ts
@@ -51,7 +51,7 @@ LLM으로 뭘 할 수 있나요?
       speaker: {
         name: "김연수",
         title: "업스테이지",
-        image: "/session/avatar.png",
+        image: "/session/김연수.jpeg",
         AUSG: true,
       },
       order: 3,
@@ -64,7 +64,7 @@ LLM으로 뭘 할 수 있나요?
       speaker: {
         name: "김민태",
         title: "우아한형제들",
-        image: "/session/avatar.png",
+        image: "/session/김민태.jpg",
         AUSG: true,
       },
       order: 4,
@@ -114,7 +114,7 @@ gRPC에 대해 먼저 이야기하고 함께 일하고 싶었던 엔지니어는
       speaker: {
         name: "김한수",
         title: "뱅크샐러드",
-        image: "/session/avatar.png",
+        image: "/session/김한수.png",
         AUSG: true,
       },
       order: 2,
@@ -126,7 +126,7 @@ gRPC에 대해 먼저 이야기하고 함께 일하고 싶었던 엔지니어는
       speaker: {
         name: "정지우",
         title: "여기어때컴퍼니",
-        image: "/session/avatar.png",
+        image: "/session/정지우.jpg",
         AUSG: true,
       },
       order: 3,
@@ -139,7 +139,7 @@ gRPC에 대해 먼저 이야기하고 함께 일하고 싶었던 엔지니어는
       speaker: {
         name: "변준석",
         title: "엔라이즈",
-        image: "/session/avatar.png",
+        image: "/session/변준석.jpg",
         AUSG: true,
       },
       order: 4,
@@ -151,7 +151,7 @@ gRPC에 대해 먼저 이야기하고 함께 일하고 싶었던 엔지니어는
       speaker: {
         name: "김수빈",
         title: "당근",
-        image: "/session/avatar.png",
+        image: "/session/김수빈.png",
         AUSG: true,
       },
       order: 5,
@@ -195,7 +195,7 @@ const track3 = {
       speaker: {
         name: "김윤서",
         title: "AWS",
-        image: "/session/avatar.png",
+        image: "/session/김윤서.jpeg",
         AUSG: true,
       },
       order: 2,
@@ -209,7 +209,7 @@ EC2로 Bastion host를 구축하면서 겪은 경험과 고민을 공유합니
       speaker: {
         name: "안지완",
         title: "몰로코",
-        image: "/session/avatar.png",
+        image: "/session/안지완.png",
         AUSG: true,
       },
       order: 3,
@@ -230,7 +230,7 @@ EC2로 Bastion host를 구축하면서 겪은 경험과 고민을 공유합니
       speaker: {
         name: "김동규",
         title: "마커 AI",
-        image: "/session/avatar.png",
+        image: "/session/김동규.jpg",
       },
       order: 4,
     },