diff --git a/gax-java/dependencies.properties b/gax-java/dependencies.properties
index c2da1495d5..afa277876f 100644
--- a/gax-java/dependencies.properties
+++ b/gax-java/dependencies.properties
@@ -88,3 +88,4 @@ maven.net_bytebuddy_byte_buddy=net.bytebuddy:byte-buddy:1.14.16
 maven.org_objenesis_objenesis=org.objenesis:objenesis:2.6
 maven.org_junit_jupiter_junit_jupiter_api=org.junit.jupiter:junit-jupiter-api:5.10.2
 maven.org_junit_jupiter_junit_jupiter_params=org.junit.jupiter:junit-jupiter-params:5.10.2
+maven.org_junit_pioneer_junit_pioneer=org.junit-pioneer:junit-pioneer:2.2.0
diff --git a/gax-java/gax/BUILD.bazel b/gax-java/gax/BUILD.bazel
index 5dd3ff96bd..dae2f747f9 100644
--- a/gax-java/gax/BUILD.bazel
+++ b/gax-java/gax/BUILD.bazel
@@ -41,6 +41,7 @@ _TEST_COMPILE_DEPS = [
     "@net_bytebuddy_byte_buddy//jar",
     "@org_objenesis_objenesis//jar",
     "@com_googlecode_java_diff_utils_diffutils//jar",
+    "@org_junit_pioneer_junit_pioneer//jar",
 ]
 
 java_library(