diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index fdd6e6c..6a98b6e 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -11,18 +11,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
+      uses: actions/setup-java@v4
       with:
-        java-version: 1.8
-    - name: Cache gradle files
-      uses: actions/cache@v1
-      env:
-        cache-name: cache-gradle-files
-      with:
-        path: ~/.gradle/caches
-        key: gradle-${{ env.cache-name }}-${{ hashFiles('build.gradle') }}
+        distribution: 'corretto'
+        java-version: '8'
+        cache: 'gradle'
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
     - name: Check spotless
diff --git a/.github/workflows/javadoc.yml b/.github/workflows/javadoc.yml
index 5892791..69ab102 100644
--- a/.github/workflows/javadoc.yml
+++ b/.github/workflows/javadoc.yml
@@ -14,8 +14,8 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-java@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
         with:
           distribution: 'corretto'
           java-version: '8'
@@ -23,14 +23,14 @@ jobs:
       - name: Generate Javadoc
         run: ./gradlew javadocUpdate
       - name: Setup Pages
-        uses: actions/configure-pages@v3
+        uses: actions/configure-pages@v5
       - name: Build with Jekyll
         uses: actions/jekyll-build-pages@v1
         with:
           source: ./docs
           destination: ./_site
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v2
+        uses: actions/upload-pages-artifact@v3
 
   deploy:
     permissions:
@@ -45,4 +45,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v2
+        uses: actions/deploy-pages@v4
diff --git a/.github/workflows/license.yml b/.github/workflows/license.yml
index 13b3646..062670c 100644
--- a/.github/workflows/license.yml
+++ b/.github/workflows/license.yml
@@ -13,18 +13,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
+      uses: actions/setup-java@v4
       with:
-        java-version: 1.8
-    - name: Cache gradle files
-      uses: actions/cache@v1
-      env:
-        cache-name: cache-gradle-files
-      with:
-        path: ~/.gradle/caches
-        key: gradle-${{ env.cache-name }}-${{ hashFiles('build.gradle') }}
+        distribution: 'corretto'
+        java-version: '8'
+        cache: 'gradle'
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
     - name: Install License Finder
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index dcc6565..f25a83d 100644
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -11,7 +11,7 @@ jobs:
       pull-requests: write
       contents: write
     steps:
-      - uses: actions/stale@v6
+      - uses: actions/stale@v9
         with:
           days-before-stale: 30
           days-before-close: 14
diff --git a/.github/workflows/yamory.yml b/.github/workflows/yamory.yml
index 5a1902e..c2681d9 100644
--- a/.github/workflows/yamory.yml
+++ b/.github/workflows/yamory.yml
@@ -12,18 +12,13 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
+      uses: actions/setup-java@v4
       with:
-        java-version: 1.8
-    - name: Cache gradle files
-      uses: actions/cache@v1
-      env:
-        cache-name: cache-gradle-files
-      with:
-        path: ~/.gradle/caches
-        key: gradle-${{ env.cache-name }}-${{ hashFiles('build.gradle') }}
+        distribution: 'corretto'
+        java-version: '8'
+        cache: 'gradle'
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
     - name: run Yamory
diff --git a/README.md b/README.md
index 6468274..450b453 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ API client library for Kintone REST APIs on Java.
     Add dependency declaration in `build.gradle` of your project.
     ```
     dependencies {
-        implementation 'com.kintone:kintone-java-client:2.2.0'
+        implementation 'com.kintone:kintone-java-client:2.2.1'
     }
     ```
 - For projects using Maven  
@@ -17,7 +17,7 @@ API client library for Kintone REST APIs on Java.
     <dependency>
         <groupId>com.kintone</groupId>
         <artifactId>kintone-java-client</artifactId>
-        <version>2.2.0</version>
+        <version>2.2.1</version>
     </dependency>
   ```
 
diff --git a/build.gradle b/build.gradle
index 4679abb..465b677 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ plugins {
     id 'com.github.hierynomus.license' version '0.16.1'
 }
 
-version = '2.2.0'
+version = '2.2.1'
 sourceCompatibility = 1.8
 targetCompatibility = 1.8
 
@@ -25,19 +25,19 @@ artifacts {
 
 dependencies {
     implementation 'org.apache.httpcomponents.client5:httpclient5:5.3.1'
-    implementation 'com.fasterxml.jackson.core:jackson-databind:2.16.1'
-    implementation 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.16.1'
+    implementation 'com.fasterxml.jackson.core:jackson-databind:2.17.1'
+    implementation 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.17.1'
     implementation 'org.slf4j:slf4j-api:1.7.36'
 
-    compileOnly 'org.projectlombok:lombok:1.18.30'
-    annotationProcessor 'org.projectlombok:lombok:1.18.30'
+    compileOnly 'org.projectlombok:lombok:1.18.34'
+    annotationProcessor 'org.projectlombok:lombok:1.18.34'
 
-    testImplementation 'com.google.guava:guava:33.0.0-jre'
-    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.10.2'
-    testImplementation 'org.assertj:assertj-core:3.25.3'
+    testImplementation 'com.google.guava:guava:33.2.1-jre'
+    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.10.3'
+    testImplementation 'org.assertj:assertj-core:3.26.0'
     testImplementation 'org.mock-server:mockserver-netty:5.15.0'
 
-    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.10.2'
+    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.10.3'
 }
 
 downloadLicenses {
diff --git a/docs/getting-started.md b/docs/getting-started.md
index 5f48fe4..55c6e01 100644
--- a/docs/getting-started.md
+++ b/docs/getting-started.md
@@ -29,7 +29,7 @@ client.close();
 Add dependency declaration in `build.gradle` of your project.
 ```groovy
 dependencies {
-     implementation 'com.kintone:kintone-java-client:2.2.0'
+     implementation 'com.kintone:kintone-java-client:2.2.1'
 }
 ```
 
@@ -39,7 +39,7 @@ Add dependency declaration in `pom.xml` of your project.
 <dependency>
     <groupId>com.kintone</groupId>
     <artifactId>kintone-java-client</artifactId>
-    <version>2.2.0</version>
+    <version>2.2.1</version>
 </dependency>
 ```