diff --git a/build.gradle b/build.gradle
index 61b9b428..14d0fa13 100644
--- a/build.gradle
+++ b/build.gradle
@@ -66,9 +66,9 @@ subprojects {
     implementation(platform(catalog.opentelemetryInstrumentationBom))
     implementation(platform(catalog.opentelemetryInstrumentationAlphaBom))
 
-    testImplementation("org.mockito:mockito-core:5.5.0")
+    testImplementation(catalog.mockito)
 
-    testImplementation(enforcedPlatform("org.junit:junit-bom:" + catalog.versions.junit.get().toString()))
+    testImplementation(enforcedPlatform(catalog.junitBom))
     testImplementation("org.junit.jupiter:junit-jupiter")
   }
 
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index cab238bc..662b8041 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -43,6 +43,9 @@ testcontainers = "org.testcontainers:testcontainers:1.19.4"
 logback = "ch.qos.logback:logback-classic:1.4.14"
 jackson = "com.fasterxml.jackson.core:jackson-databind:2.16.1"
 protobuf-util = "com.google.protobuf:protobuf-java-util:3.25.2"
+mockito = "org.mockito:mockito-core:5.10.0"
+
+junitBom = { group = "org.junit", name = "junit-bom", version.ref = "junit" }
 
 spotlessPlugin = { group = "com.diffplug.spotless", name = "spotless-plugin-gradle", version.ref = "spotless" }
 
diff --git a/testing-common/build.gradle.kts b/testing-common/build.gradle.kts
index cb992eae..e2dc1bbd 100644
--- a/testing-common/build.gradle.kts
+++ b/testing-common/build.gradle.kts
@@ -9,7 +9,7 @@ dependencies {
   implementation(libs.assertj.core)
   implementation("io.opentelemetry:opentelemetry-sdk-testing")
   implementation("io.opentelemetry:opentelemetry-exporter-logging")
-  implementation(enforcedPlatform("org.junit:junit-bom:" + catalog.versions.junit.get()))
+  implementation(enforcedPlatform(catalog.junitBom))
   implementation("org.junit.jupiter:junit-jupiter")
 
   compileOnly(libs.findbugs.jsr305)