diff --git a/appsignals-tests/contract-tests/build.gradle.kts b/appsignals-tests/contract-tests/build.gradle.kts
index 65b8aae75e..6252bc5ac4 100644
--- a/appsignals-tests/contract-tests/build.gradle.kts
+++ b/appsignals-tests/contract-tests/build.gradle.kts
@@ -104,7 +104,3 @@ tasks {
     dependsOn(":appsignals-tests:images:kafka:kafka-consumers:jibDockerBuild")
   }
 }
-
-repositories {
-  mavenCentral()
-}
diff --git a/appsignals-tests/images/grpc/grpc-base/build.gradle.kts b/appsignals-tests/images/grpc/grpc-base/build.gradle.kts
index cfd7934b22..b945d29474 100644
--- a/appsignals-tests/images/grpc/grpc-base/build.gradle.kts
+++ b/appsignals-tests/images/grpc/grpc-base/build.gradle.kts
@@ -20,10 +20,6 @@ plugins {
 
 group = "software.amazon.opentelemetry"
 
-repositories {
-  mavenCentral()
-}
-
 dependencies {
   // Workaround for @javax.annotation.Generated
   // see: https://github.com/grpc/grpc-java/issues/3633
diff --git a/appsignals-tests/images/grpc/grpc-client/build.gradle.kts b/appsignals-tests/images/grpc/grpc-client/build.gradle.kts
index 0ac0737b00..9b529bb23f 100644
--- a/appsignals-tests/images/grpc/grpc-client/build.gradle.kts
+++ b/appsignals-tests/images/grpc/grpc-client/build.gradle.kts
@@ -23,10 +23,6 @@ plugins {
 
 group = "software.amazon.opentelemetry"
 
-repositories {
-  mavenCentral()
-}
-
 dependencies {
   implementation("com.sparkjava:spark-core")
   implementation("org.slf4j:slf4j-simple")
diff --git a/appsignals-tests/images/grpc/grpc-server/build.gradle.kts b/appsignals-tests/images/grpc/grpc-server/build.gradle.kts
index fdee18243f..73be8257d2 100644
--- a/appsignals-tests/images/grpc/grpc-server/build.gradle.kts
+++ b/appsignals-tests/images/grpc/grpc-server/build.gradle.kts
@@ -23,10 +23,6 @@ plugins {
 
 group = "software.amazon.opentelemetry"
 
-repositories {
-  mavenCentral()
-}
-
 dependencies {
   implementation(project(":appsignals-tests:images:grpc:grpc-base"))
   implementation("javax.annotation:javax.annotation-api:1.3.2")
diff --git a/appsignals-tests/images/http-servers/netty-server/build.gradle.kts b/appsignals-tests/images/http-servers/netty-server/build.gradle.kts
index 3d87218b12..e017e85e4d 100644
--- a/appsignals-tests/images/http-servers/netty-server/build.gradle.kts
+++ b/appsignals-tests/images/http-servers/netty-server/build.gradle.kts
@@ -32,9 +32,6 @@ dependencies {
   implementation("org.slf4j:slf4j-simple:1.7.30")
   implementation("io.opentelemetry:opentelemetry-api")
 }
-repositories {
-  mavenCentral()
-}
 
 // not publishing images to hubs in this configuration - local build only through jibDockerBuild
 // if localDocker property is set to true then the image will only be pulled from Docker Daemon
diff --git a/appsignals-tests/images/kafka/kafka-consumers/build.gradle.kts b/appsignals-tests/images/kafka/kafka-consumers/build.gradle.kts
index ed6a8b7461..045271e337 100644
--- a/appsignals-tests/images/kafka/kafka-consumers/build.gradle.kts
+++ b/appsignals-tests/images/kafka/kafka-consumers/build.gradle.kts
@@ -25,10 +25,6 @@ java {
   targetCompatibility = JavaVersion.VERSION_11
 }
 
-repositories {
-  mavenCentral()
-}
-
 dependencies {
   implementation("com.sparkjava:spark-core")
   implementation("org.apache.kafka:kafka-clients:3.6.0")
diff --git a/appsignals-tests/images/kafka/kafka-producers/build.gradle.kts b/appsignals-tests/images/kafka/kafka-producers/build.gradle.kts
index e8118b3e73..fe4c99c585 100644
--- a/appsignals-tests/images/kafka/kafka-producers/build.gradle.kts
+++ b/appsignals-tests/images/kafka/kafka-producers/build.gradle.kts
@@ -25,10 +25,6 @@ java {
   targetCompatibility = JavaVersion.VERSION_11
 }
 
-repositories {
-  mavenCentral()
-}
-
 dependencies {
   implementation("com.sparkjava:spark-core")
   implementation("org.apache.kafka:kafka-clients:3.6.0")
diff --git a/testing/sample-apps/springboot-remote-service/build.gradle.kts b/testing/sample-apps/springboot-remote-service/build.gradle.kts
index 0c9193e894..dbe67c6e50 100644
--- a/testing/sample-apps/springboot-remote-service/build.gradle.kts
+++ b/testing/sample-apps/springboot-remote-service/build.gradle.kts
@@ -26,10 +26,6 @@ version = "0.0.1-SNAPSHOT"
 java.sourceCompatibility = JavaVersion.VERSION_11
 java.targetCompatibility = JavaVersion.VERSION_11
 
-repositories {
-  mavenCentral()
-}
-
 dependencies {
   implementation("org.springframework.boot:spring-boot-starter-web")
   implementation("org.springframework.boot:spring-boot-starter-logging")
diff --git a/testing/sample-apps/springboot/build.gradle.kts b/testing/sample-apps/springboot/build.gradle.kts
index d8f6998e7f..eb483f45e8 100644
--- a/testing/sample-apps/springboot/build.gradle.kts
+++ b/testing/sample-apps/springboot/build.gradle.kts
@@ -26,10 +26,6 @@ version = "0.0.1-SNAPSHOT"
 java.sourceCompatibility = JavaVersion.VERSION_11
 java.targetCompatibility = JavaVersion.VERSION_11
 
-repositories {
-  mavenCentral()
-}
-
 dependencies {
   implementation(platform("software.amazon.awssdk:bom:2.20.78"))
   implementation("org.springframework.boot:spring-boot-starter-web")
diff --git a/testing/validator/build.gradle.kts b/testing/validator/build.gradle.kts
index de03b5ad31..852bdc9971 100644
--- a/testing/validator/build.gradle.kts
+++ b/testing/validator/build.gradle.kts
@@ -28,6 +28,9 @@ repositories {
   maven(
     "https://jitpack.io",
   )
+  maven {
+    setUrl("https://oss.sonatype.org/content/repositories/snapshots")
+  }
 }
 
 dependencies {