diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 8f6e4d24..8c8cc2c7 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -45,7 +45,8 @@ android {
             manifestPlaceholders["KAKAO_APP_KEY"] = kakaoKey
             manifestPlaceholders["APP_LINK_HOST"] = appLinkHost
 
-            isMinifyEnabled = false
+            isMinifyEnabled = true
+            isShrinkResources = true
 
             proguardFiles(
                 getDefaultProguardFile("proguard-android-optimize.txt"),
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 1e97e068..b0a14542 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -20,34 +20,73 @@
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
 
-# Retrofit
+# ─────────────────────────────────────────────
+# 공통: 리플렉션/제네릭 기반 라이브러리들이 필요로 하는 속성
+# (Kakao SDK 내부 Retrofit+Gson, kotlinx.serialization 모두 공통으로 사용)
+# ─────────────────────────────────────────────
 -keepattributes Signature, InnerClasses, EnclosingMethod
 -keepattributes RuntimeVisibleAnnotations, RuntimeVisibleParameterAnnotations
 -keepattributes AnnotationDefault
 
--keepclassmembers,allowshrinking,allowobfuscation interface * {
-    @retrofit2.http.* <methods>;
-}
+# ─────────────────────────────────────────────
+# Kakao SDK
+# 카카오 SDK는 내부적으로 Retrofit + Gson을 번들링해서 씀.
+# 모델 클래스가 리플렉션으로 필드에 접근하므로 난독화/축소에서 제외.
+# ─────────────────────────────────────────────
+-keep class com.kakao.sdk.** { *; }
+-keep class * extends com.google.gson.TypeAdapter
+-keep class * implements com.google.gson.TypeAdapterFactory
+-keep class * implements com.google.gson.JsonSerializer
+-keep class * implements com.google.gson.JsonDeserializer
 
--dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
+-dontwarn org.slf4j.**
+-dontwarn org.bouncycastle.jsse.**
+-dontwarn org.conscrypt.**
+-dontwarn org.openjsse.**
 -dontwarn javax.annotation.**
--dontwarn kotlin.Unit
--dontwarn retrofit2.KotlinExtensions
--dontwarn retrofit2.KotlinExtensions$*
-
-# suspend 함수 반환 타입 유지
--if interface * { @retrofit2.http.* <methods>; }
--keep,allowobfuscation interface <1>
-
--if interface * { @retrofit2.http.* <methods>; }
--keep,allowobfuscation interface * extends <1>
-
-# Retrofit이 사용하는 제네릭 타입
--keep,allowobfuscation,allowshrinking class retrofit2.Response
--keep,allowobfuscation,allowshrinking class kotlin.coroutines.Continuation
--keep,allowobfuscation,allowshrinking interface retrofit2.Call
--keep,allowobfuscation,allowshrinking class retrofit2.Response
--keep,allowobfuscation,allowshrinking class kotlin.coroutines.Continuation
-
--if interface * { @retrofit2.http.* <methods>; }
--keep,allowobfuscation interface <1>
\ No newline at end of file
+
+# ─────────────────────────────────────────────
+# OkHttp / Okio (Ktor의 OkHttp 엔진이 사용)
+# 데스크톱 전용 TLS 프로바이더 감지 코드가 참조하지만 안드로이드엔 없는 클래스들.
+# ─────────────────────────────────────────────
+-dontwarn okhttp3.internal.platform.**
+-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
+
+# ─────────────────────────────────────────────
+# Ktor
+# 클라이언트 엔진(OkHttp)을 리플렉션 기반 ServiceLoader로 찾기 때문에 keep 필요.
+# ─────────────────────────────────────────────
+-keep class io.ktor.** { *; }
+-keep interface io.ktor.** { *; }
+-dontwarn io.ktor.**
+
+# ─────────────────────────────────────────────
+# kotlinx.serialization
+# 공식 권장 규칙(https://github.com/Kotlin/kotlinx.serialization#android) —
+# @Serializable 클래스의 Companion/serializer()가 리플렉션처럼 조회되는 경로를 보존.
+# ─────────────────────────────────────────────
+-if @kotlinx.serialization.Serializable class **
+-keepclassmembers class <1> {
+    static <1>$Companion Companion;
+}
+
+-if @kotlinx.serialization.Serializable class ** {
+    static **$* *;
+}
+-keepclassmembers class <2>$* {
+    kotlinx.serialization.KSerializer serializer(...);
+}
+
+-if @kotlinx.serialization.Serializable class ** {
+    public static ** INSTANCE;
+}
+-keepclassmembers class <1> {
+    public static <1> INSTANCE;
+    kotlinx.serialization.KSerializer serializer(...);
+}
+
+-keepclasseswithmembers class **$$serializer {
+    *** serializer(...);
+}
+
+-dontnote kotlinx.serialization.AnnotationsKt