diff --git a/instrumentation/vertx/vertx-http-client/vertx-http-client-4.0/javaagent/build.gradle.kts b/instrumentation/vertx/vertx-http-client/vertx-http-client-4.0/javaagent/build.gradle.kts
index 021419b09699..560ded419bfe 100644
--- a/instrumentation/vertx/vertx-http-client/vertx-http-client-4.0/javaagent/build.gradle.kts
+++ b/instrumentation/vertx/vertx-http-client/vertx-http-client-4.0/javaagent/build.gradle.kts
@@ -17,6 +17,10 @@ dependencies {
   // vertx-codegen dependency is needed for Xlint's annotation checking
   library("io.vertx:vertx-codegen:4.0.0")
 
+  // concurrency tests are failing with 4.3.4
+  // tracking at https://github.com/open-telemetry/opentelemetry-java-instrumentation/issues/6790
+  latestDepTestLibrary("io.vertx:vertx-core:4.3.3")
+
   implementation(project(":instrumentation:vertx:vertx-http-client:vertx-http-client-common:javaagent"))
 
   testInstrumentation(project(":instrumentation:netty:netty-4.1:javaagent"))
diff --git a/instrumentation/vertx/vertx-rx-java-3.5/javaagent/build.gradle.kts b/instrumentation/vertx/vertx-rx-java-3.5/javaagent/build.gradle.kts
index b070b71b30d4..9c6f6a7200b6 100644
--- a/instrumentation/vertx/vertx-rx-java-3.5/javaagent/build.gradle.kts
+++ b/instrumentation/vertx/vertx-rx-java-3.5/javaagent/build.gradle.kts
@@ -46,9 +46,11 @@ dependencies {
   add("version35TestImplementation", "io.vertx:vertx-jdbc-client:$vertxVersion")
   add("version35TestImplementation", "io.vertx:vertx-circuit-breaker:$vertxVersion")
 
-  add("latestDepTestImplementation", "io.vertx:vertx-web:4.+")
-  add("latestDepTestImplementation", "io.vertx:vertx-rx-java2:4.+")
-  add("latestDepTestImplementation", "io.vertx:vertx-web-client:4.+")
-  add("latestDepTestImplementation", "io.vertx:vertx-jdbc-client:4.+")
-  add("latestDepTestImplementation", "io.vertx:vertx-circuit-breaker:4.+")
+  // concurrency tests are failing with 4.3.4
+  // tracking at https://github.com/open-telemetry/opentelemetry-java-instrumentation/issues/6790
+  add("latestDepTestImplementation", "io.vertx:vertx-web:4.3.3")
+  add("latestDepTestImplementation", "io.vertx:vertx-rx-java2:4.3.3")
+  add("latestDepTestImplementation", "io.vertx:vertx-web-client:4.3.3")
+  add("latestDepTestImplementation", "io.vertx:vertx-jdbc-client:4.3.3")
+  add("latestDepTestImplementation", "io.vertx:vertx-circuit-breaker:4.3.3")
 }