diff --git a/.github/workflows/junit-tests.yml b/.github/workflows/junit-tests.yml
index 0150f66..a9346da 100644
--- a/.github/workflows/junit-tests.yml
+++ b/.github/workflows/junit-tests.yml
@@ -15,10 +15,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@0717577d45739eb3c851188b29f50ed6c0b2194e # v2.8.0
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
     - name: Set up Java
-      uses: actions/setup-java@0f62d2ad8407a414cddd4790bed06fd9ebda0f56 # v1.4.5
+      uses: actions/setup-java@dd06d9cba3e5552c54d9f8ea23572deb30010f7c # v6.0.0
       with:
-        java-version: 11
+        java-version: 17
+        distribution: temurin
+        cache: maven
     - name: Build with Maven
       run: mvn test
diff --git a/pom.xml b/pom.xml
index d4dfe05..33c136e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.7.1</version>
+		<version>4.1.1</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.example</groupId>
@@ -28,22 +28,19 @@
 			<artifactId>spring-boot-starter-webflux</artifactId>
 		</dependency>
 		<dependency>
-			<groupId>io.r2dbc</groupId>
+			<groupId>org.postgresql</groupId>
 			<artifactId>r2dbc-postgresql</artifactId>
-			<version>0.8.12.RELEASE</version>
 			<scope>runtime</scope>
 		</dependency>
 
        <dependency>
             <groupId>io.r2dbc</groupId>
             <artifactId>r2dbc-h2</artifactId>
-            <version>0.9.1.RELEASE</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
-            <version>2.1.214</version>
             <scope>test</scope>
         </dependency>
 
@@ -51,12 +48,6 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
-			<exclusions>
-				<exclusion>
-					<groupId>org.junit.vintage</groupId>
-					<artifactId>junit-vintage-engine</artifactId>
-				</exclusion>
-			</exclusions>
 		</dependency>
 		<dependency>
 			<groupId>io.projectreactor</groupId>
diff --git a/src/main/java/com/example/demo/DemoApplication.java b/src/main/java/com/example/demo/DemoApplication.java
index 6df48fb..4044a58 100644
--- a/src/main/java/com/example/demo/DemoApplication.java
+++ b/src/main/java/com/example/demo/DemoApplication.java
@@ -4,8 +4,8 @@
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.Bean;
 import org.springframework.core.io.ClassPathResource;
-import org.springframework.data.r2dbc.connectionfactory.init.ConnectionFactoryInitializer;
-import org.springframework.data.r2dbc.connectionfactory.init.ResourceDatabasePopulator;
+import org.springframework.r2dbc.connection.init.ConnectionFactoryInitializer;
+import org.springframework.r2dbc.connection.init.ResourceDatabasePopulator;
 
 import io.r2dbc.spi.ConnectionFactory;
 
diff --git a/src/test/java/com/example/demo/TodoRepositoryTest.java b/src/test/java/com/example/demo/TodoRepositoryTest.java
index b783587..383888e 100644
--- a/src/test/java/com/example/demo/TodoRepositoryTest.java
+++ b/src/test/java/com/example/demo/TodoRepositoryTest.java
@@ -4,7 +4,7 @@
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.data.r2dbc.core.DatabaseClient;
+import org.springframework.r2dbc.core.DatabaseClient;
 import reactor.core.publisher.Hooks;
 import reactor.core.publisher.Mono;
 import reactor.test.StepVerifier;
@@ -24,7 +24,7 @@ public class TodoRepositoryTest {
     public void setUp() {
         Hooks.onOperatorDebug();
 
-        database.execute("DELETE FROM todo;").fetch()
+        database.sql("DELETE FROM todo;").fetch()
                 .rowsUpdated()
                 .as(StepVerifier::create)
                 .expectNextCount(1)