diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 667982c..d3cf5b1 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -22,7 +22,7 @@ jobs:
         dockcross-only: ["android-arm", "android-arm64", "linux-arm64", "linux-armv5", "linux-armv7", "linux-s390x", "linux-ppc64le", "linux-x64", "linux-x86", "windows-static-x64", "windows-static-x86"]
 
     steps:
-      - uses: actions/checkout@v2.1.1
+      - uses: actions/checkout@v4
         with:
           submodules: recursive
 
@@ -31,7 +31,7 @@ jobs:
           distribution: "${{ matrix.java-distribution }}"
           java-version: "${{ matrix.java-version }}"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         id: maven-cache
         with:
           path: ~/.m2/
@@ -74,16 +74,16 @@ jobs:
         dockcross-only: ["android-arm", "android-arm64", "linux-arm64", "linux-armv5", "linux-armv7", "linux-s390x", "linux-ppc64le", "linux-x64", "linux-x86", "windows-static-x64", "windows-static-x86"]
 
     steps:
-      - uses: actions/checkout@v2.1.1
+      - uses: actions/checkout@v4
         with:
           submodules: recursive
 
-      - uses: actions/setup-java@v2
+      - uses: actions/setup-java@v4
         with:
           distribution: "${{ matrix.java-distribution }}"
           java-version: "${{ matrix.java-version }}"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         id: maven-cache
         with:
           path: ~/.m2/
@@ -109,7 +109,7 @@ jobs:
         java-version: [8, 11, 17, 21, 22]
 
     steps:
-      - uses: actions/checkout@v2.1.1
+      - uses: actions/checkout@v4
         with:
           submodules: recursive
 
@@ -118,7 +118,7 @@ jobs:
           distribution: "${{ matrix.java-distribution }}"
           java-version: "${{ matrix.java-version }}"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         id: maven-cache
         with:
           path: ~/.m2/
@@ -148,7 +148,7 @@ jobs:
         java-version: [8]
 
     steps:
-      - uses: actions/checkout@v2.1.1
+      - uses: actions/checkout@v4
         with:
           submodules: recursive
 
@@ -157,7 +157,7 @@ jobs:
           distribution: "${{ matrix.java-distribution }}"
           java-version: "${{ matrix.java-version }}"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         id: maven-cache
         with:
           path: ~/.m2/
@@ -186,7 +186,7 @@ jobs:
         java-version: [8]
 
     steps:
-      - uses: actions/checkout@v2.1.1
+      - uses: actions/checkout@v4
         with:
           submodules: recursive
 
@@ -195,7 +195,7 @@ jobs:
           distribution: "${{ matrix.java-distribution }}"
           java-version: "${{ matrix.java-version }}"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         id: maven-cache
         with:
           path: ~/.m2/
@@ -236,7 +236,7 @@ jobs:
         java-version: [ 21 ]
 
     steps:
-      - uses: actions/checkout@v2.1.1
+      - uses: actions/checkout@v4
         with:
           submodules: recursive
 
@@ -245,7 +245,7 @@ jobs:
           distribution: "${{ matrix.java-distribution }}"
           java-version: "${{ matrix.java-version }}"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         id: maven-cache
         with:
           path: ~/.m2/
diff --git a/.github/workflows/website.yml b/.github/workflows/website.yml
index 600f6b1..40788c8 100644
--- a/.github/workflows/website.yml
+++ b/.github/workflows/website.yml
@@ -12,14 +12,14 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v4
 
-      - uses: actions/setup-java@v2
+      - uses: actions/setup-java@v4
         with:
           distribution: "adopt"
           java-version: "15"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         id: maven-cache
         with:
           path: ~/.m2/
diff --git a/README.md b/README.md
index 801fdbd..c906ebc 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 [![Coverage Status](https://coveralls.io/repos/github/uber/h3-java/badge.svg?branch=master)](https://coveralls.io/github/uber/h3-java?branch=master)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](LICENSE)
 [![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.uber/h3/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.uber/h3)
-[![H3 Version](https://img.shields.io/badge/h3-v4.2.0-blue.svg)](https://github.com/uber/h3/releases/tag/v4.2.0)
+[![H3 Version](https://img.shields.io/badge/h3-v4.2.1-blue.svg)](https://github.com/uber/h3/releases/tag/v4.2.1)
 
 This library provides Java bindings for the [H3 Core Library](https://github.com/uber/h3). For API reference, please see the [H3 Documentation](https://h3geo.org/).
 
@@ -18,14 +18,14 @@ Add it to your pom.xml:
 <dependency>
     <groupId>com.uber</groupId>
     <artifactId>h3</artifactId>
-    <version>4.2.0</version>
+    <version>4.1.1</version>
 </dependency>
 ```
 
 Or, using Gradle:
 
 ```gradle
-compile("com.uber:h3:4.2.0")
+compile("com.uber:h3:4.1.1")
 ```
 
 Encode a location into a hexagon address:
diff --git a/h3version.properties b/h3version.properties
index 31fe3de..148cdc0 100644
--- a/h3version.properties
+++ b/h3version.properties
@@ -1 +1 @@
-h3.git.reference=v4.2.0
+h3.git.reference=v4.2.1