diff --git a/doc-snippets/exporters/build.gradle.kts b/doc-snippets/exporters/build.gradle.kts
index a1560039bf..0bfc7d25ba 100644
--- a/doc-snippets/exporters/build.gradle.kts
+++ b/doc-snippets/exporters/build.gradle.kts
@@ -2,7 +2,7 @@ import org.springframework.boot.gradle.plugin.SpringBootPlugin
 
 plugins {
     id("java")
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
 }
 
 val moduleName by extra { "io.opentelemetry.examples.docs.exporters" }
diff --git a/doc-snippets/getting-started/build.gradle.kts b/doc-snippets/getting-started/build.gradle.kts
index 6a07b873be..5701236d32 100644
--- a/doc-snippets/getting-started/build.gradle.kts
+++ b/doc-snippets/getting-started/build.gradle.kts
@@ -2,7 +2,7 @@ import org.springframework.boot.gradle.plugin.SpringBootPlugin
 
 plugins {
     id("java")
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
 }
 
 val moduleName by extra { "io.opentelemetry.examples.docs.getting-started" }
diff --git a/javaagent-declarative-configuration/build.gradle.kts b/javaagent-declarative-configuration/build.gradle.kts
index c5ae12a7a5..49b515b7e0 100644
--- a/javaagent-declarative-configuration/build.gradle.kts
+++ b/javaagent-declarative-configuration/build.gradle.kts
@@ -3,7 +3,7 @@ import org.springframework.boot.gradle.tasks.bundling.BootJar
 
 plugins {
     id("java")
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
 }
 
 description = "OpenTelemetry Java Agent Declarative Configuration Example"
diff --git a/javaagent/build.gradle.kts b/javaagent/build.gradle.kts
index a4d062e03b..3948eb8d05 100644
--- a/javaagent/build.gradle.kts
+++ b/javaagent/build.gradle.kts
@@ -3,7 +3,7 @@ import org.springframework.boot.gradle.tasks.bundling.BootJar
 
 plugins {
     id("java")
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
 }
 
 description = "OpenTelemetry Example for Java Agent"
diff --git a/logging-k8s-stdout-otlp-json/build.gradle.kts b/logging-k8s-stdout-otlp-json/build.gradle.kts
index 948db1afe2..3de8f7213f 100644
--- a/logging-k8s-stdout-otlp-json/build.gradle.kts
+++ b/logging-k8s-stdout-otlp-json/build.gradle.kts
@@ -3,7 +3,7 @@ import org.springframework.boot.gradle.tasks.bundling.BootJar
 
 plugins {
     id("java")
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
 }
 
 description = "OpenTelemetry Example for Java Agent with Stdout logging"
diff --git a/micrometer-shim/build.gradle.kts b/micrometer-shim/build.gradle.kts
index f2b9f683f2..25e54d70ec 100644
--- a/micrometer-shim/build.gradle.kts
+++ b/micrometer-shim/build.gradle.kts
@@ -3,7 +3,7 @@ import org.springframework.boot.gradle.tasks.run.BootRun
 
 plugins {
     id("java")
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
 }
 
 description = "OpenTelemetry Example for Micrometer Shim"
@@ -31,5 +31,5 @@ dependencies {
     //spring modules
     implementation("org.springframework.boot:spring-boot-starter-web")
     implementation("org.springframework.boot:spring-boot-starter-actuator")
-    implementation("org.springframework.boot:spring-boot-starter-aop")
+    implementation("org.springframework.boot:spring-boot-starter-aspectj")
 }
diff --git a/telemetry-testing/build.gradle.kts b/telemetry-testing/build.gradle.kts
index 07268e01f0..8146ed28ca 100644
--- a/telemetry-testing/build.gradle.kts
+++ b/telemetry-testing/build.gradle.kts
@@ -4,7 +4,7 @@ import org.springframework.boot.gradle.tasks.run.BootRun
 
 plugins {
     id("java")
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
 }
 
 description = "OpenTelemetry Example for Telemetry Testing"
@@ -32,7 +32,9 @@ dependencies {
     implementation("io.opentelemetry.instrumentation:opentelemetry-instrumentation-annotations:2.22.0")
     //spring modules
     implementation("org.springframework.boot:spring-boot-starter-web")
+    implementation("org.springframework.boot:spring-boot-starter-restclient")
     testImplementation("org.springframework.boot:spring-boot-starter-test")
+    testImplementation("org.springframework.boot:spring-boot-resttestclient")
 
     testImplementation(enforcedPlatform("org.junit:junit-bom:6.0.1"))
     testImplementation("org.junit.jupiter:junit-jupiter-api")
diff --git a/telemetry-testing/src/test/java/io/opentelemetry/example/telemetry/ApplicationTest.java b/telemetry-testing/src/test/java/io/opentelemetry/example/telemetry/ApplicationTest.java
index 75c501877f..a3b9fcb8c0 100644
--- a/telemetry-testing/src/test/java/io/opentelemetry/example/telemetry/ApplicationTest.java
+++ b/telemetry-testing/src/test/java/io/opentelemetry/example/telemetry/ApplicationTest.java
@@ -7,7 +7,7 @@
 import static org.mockserver.model.HttpRequest.request;
 import static org.mockserver.model.HttpResponse.response;
 import static org.mockserver.stop.Stop.stopQuietly;
-import static org.springframework.boot.test.context.SpringBootTest.WebEnvironment.*;
+import static org.springframework.boot.test.context.SpringBootTest.WebEnvironment.RANDOM_PORT;
 
 import com.google.protobuf.InvalidProtocolBufferException;
 import io.opentelemetry.proto.collector.metrics.v1.ExportMetricsServiceRequest;
@@ -26,8 +26,9 @@
 import org.mockserver.model.Body;
 import org.mockserver.model.HttpRequest;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.resttestclient.TestRestTemplate;
+import org.springframework.boot.resttestclient.autoconfigure.AutoConfigureTestRestTemplate;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.boot.test.web.client.TestRestTemplate;
 import org.springframework.boot.test.web.server.LocalServerPort;
 
 /**
@@ -38,6 +39,7 @@
 @SpringBootTest(
     classes = {Application.class},
     webEnvironment = RANDOM_PORT)
+@AutoConfigureTestRestTemplate
 class ApplicationTest {
 
   @LocalServerPort private int port;