diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index e9a241df..6475f871 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -53,7 +53,7 @@ jobs:
           CACHE_HIT="${{ steps.yarn-cache.outputs.cache-hit }}"
           NODE_MODULES_EXISTS=$(test -d "node_modules" && echo "true" || echo "false")
           if [[ "$CACHE_HIT" != 'true' || "$NODE_MODULES_EXISTS" == 'false' ]]; then
-            sh ./.script/ci.sh
+            yarn install
           fi
 
       - name: Lint check
diff --git a/.npmrc b/.npmrc
deleted file mode 100644
index 7586b3b3..00000000
--- a/.npmrc
+++ /dev/null
@@ -1,2 +0,0 @@
-@ummgoban:registry=https://npm.pkg.github.com/
-//npm.pkg.github.com/:_authToken=${NPM_TOKEN}
diff --git a/.script/ci.sh b/.script/ci.sh
deleted file mode 100644
index b5bd0d3f..00000000
--- a/.script/ci.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/bin/bash
-
-sh ./.script/pre-install.sh
-
-yarn install
-
-sh ./.script/post-install.sh
diff --git a/.script/post-install.sh b/.script/post-install.sh
deleted file mode 100644
index 3627d3e8..00000000
--- a/.script/post-install.sh
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/bin/bash
-
-echo "=== postinstall ==="
-
-# .yarnrc.yml.temp 가 없으면 종료
-if [ ! -f .yarnrc.yml.temp ]; then
-  echo "No .yarnrc.yml.temp file found"
-  exit 0
-fi
-
-# 원본 복구
-cp .yarnrc.yml.temp .yarnrc.yml
-
-# 임시 파일 삭제
-rm .yarnrc.yml.temp
\ No newline at end of file
diff --git a/.script/pre-install.sh b/.script/pre-install.sh
deleted file mode 100644
index 8e0f78a7..00000000
--- a/.script/pre-install.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/bash
-
-echo "=== preinstall ==="
-
-# 원본 유지
-cp .yarnrc.yml .yarnrc.yml.temp
-
-NPM_TOKEN=$(grep NPM_TOKEN .env | cut -d '=' -f2 | tr -d '"' | xargs) envsubst < .yarnrc.yml.template > .yarnrc.yml
diff --git a/.yarnrc.yml.template b/.yarnrc.yml.template
deleted file mode 100644
index 7e52b02a..00000000
--- a/.yarnrc.yml.template
+++ /dev/null
@@ -1,12 +0,0 @@
-nodeLinker: node-modules
-
-yarnPath: .yarn/releases/yarn-3.6.4.cjs
-
-npmScopes:
-  ummgoban:
-    npmRegistryServer: 'https://npm.pkg.github.com'
-
-npmRegistries:
-  'https://npm.pkg.github.com':
-    npmAlwaysAuth: true
-    npmAuthToken: '${NPM_TOKEN}'
\ No newline at end of file
diff --git a/package.json b/package.json
index db8b9eca..b0d4bc62 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,6 @@
   "version": "1.1.2",
   "private": true,
   "scripts": {
-    "ci": "sh ./.script/ci.sh",
     "android": "cp .env.development .env && npx react-native run-android",
     "android:release": "cp .env.release .env && cd android && ./gradlew assembleRelease",
     "ios": "react-native run-ios",
@@ -42,7 +41,7 @@
     "@tanstack/react-query": "^5.66.9",
     "@tosspayments/widget-sdk-react-native": "^1.3.5",
     "@types/react-native-vector-icons": "^6.4.18",
-    "@ummgoban/shared": "0.0.4",
+    "@ummgoban/shared": "^0.0.6-nightly.20250808.a3cf0f6",
     "axios": "^1.7.4",
     "dayjs": "^1.11.13",
     "react": "18.3.1",
diff --git a/yarn.lock b/yarn.lock
index fa300141..c6f3dab8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4453,14 +4453,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@ummgoban/shared@npm:0.0.4":
-  version: 0.0.4
-  resolution: "@ummgoban/shared@npm:0.0.4::__archiveUrl=https%3A%2F%2Fnpm.pkg.github.com%2Fdownload%2F%40ummgoban%2Fshared%2F0.0.4%2Fb3ee84e295c1458b678c700d3fc985bc44ce24fe"
+"@ummgoban/shared@npm:^0.0.6-nightly.20250808.a3cf0f6":
+  version: 0.0.6-nightly.20250808.f18a523
+  resolution: "@ummgoban/shared@npm:0.0.6-nightly.20250808.f18a523"
   peerDependencies:
     axios: ">=1.7.4"
     react: ">=18.0.0"
     react-native: ">=0.79.0"
-  checksum: 2702383ed9e01fbdad9e554e782e85f5472d64044440384f15722d0ffc661e0c07fddf68d951359c15fa64fc0e013af5f51f49f54b839e7f80634ddfa6fd491f
+  checksum: e7b2817c8e85c7c963997ddd03490c809faf3bd313919902a4236f62bd34c17c619ac1967c6095ebe2cf305689120ef9625b1ad232a9576fd2b6cbfec0000455
   languageName: node
   linkType: hard
 
@@ -4502,7 +4502,7 @@ __metadata:
     "@types/react": ^18.2.6
     "@types/react-native-vector-icons": ^6.4.18
     "@types/react-test-renderer": ^18.0.0
-    "@ummgoban/shared": 0.0.4
+    "@ummgoban/shared": ^0.0.6-nightly.20250808.a3cf0f6
     axios: ^1.7.4
     babel-jest: ^29.6.3
     babel-plugin-module-resolver: ^5.0.2