diff --git a/instrumentation/reactor/reactor-3.1/javaagent/build.gradle.kts b/instrumentation/reactor/reactor-3.1/javaagent/build.gradle.kts
index f36a615c40..2797ef8621 100644
--- a/instrumentation/reactor/reactor-3.1/javaagent/build.gradle.kts
+++ b/instrumentation/reactor/reactor-3.1/javaagent/build.gradle.kts
@@ -35,6 +35,9 @@ dependencies {
   testImplementation(project(":instrumentation:reactor:reactor-3.1:testing"))
   testImplementation(project(":instrumentation-annotations"))
   testImplementation("io.opentelemetry:opentelemetry-extension-annotations")
+
+  latestDepTestLibrary("io.projectreactor:reactor-core:3.4.+")
+  latestDepTestLibrary("io.projectreactor:reactor-test:3.4.+")
 }
 
 testing {
diff --git a/instrumentation/reactor/reactor-3.1/library/build.gradle.kts b/instrumentation/reactor/reactor-3.1/library/build.gradle.kts
index ef973abaa3..5ec7deacdf 100644
--- a/instrumentation/reactor/reactor-3.1/library/build.gradle.kts
+++ b/instrumentation/reactor/reactor-3.1/library/build.gradle.kts
@@ -8,4 +8,7 @@ dependencies {
   testLibrary("io.projectreactor:reactor-test:3.1.0.RELEASE")
 
   testImplementation(project(":instrumentation:reactor:reactor-3.1:testing"))
+
+  latestDepTestLibrary("io.projectreactor:reactor-core:3.4.+")
+  latestDepTestLibrary("io.projectreactor:reactor-test:3.4.+")
 }
diff --git a/instrumentation/reactor/reactor-netty/reactor-netty-1.0/javaagent/build.gradle.kts b/instrumentation/reactor/reactor-netty/reactor-netty-1.0/javaagent/build.gradle.kts
index 3a17e3809e..4efd42ffb7 100644
--- a/instrumentation/reactor/reactor-netty/reactor-netty-1.0/javaagent/build.gradle.kts
+++ b/instrumentation/reactor/reactor-netty/reactor-netty-1.0/javaagent/build.gradle.kts
@@ -37,6 +37,9 @@ dependencies {
 
   testLibrary("io.projectreactor:reactor-test:3.1.0.RELEASE")
   testImplementation(project(":instrumentation-annotations"))
+
+  latestDepTestLibrary("io.projectreactor:reactor-core:3.4.+")
+  latestDepTestLibrary("io.projectreactor.netty:reactor-netty-http:1.0.+")
 }
 
 tasks {