diff --git a/alts/src/test/java/io/grpc/alts/internal/AltsClientOptionsTest.java b/alts/src/test/java/io/grpc/alts/internal/AltsClientOptionsTest.java
index 47d7fc79ea..45fac0aa30 100644
--- a/alts/src/test/java/io/grpc/alts/internal/AltsClientOptionsTest.java
+++ b/alts/src/test/java/io/grpc/alts/internal/AltsClientOptionsTest.java
@@ -49,7 +49,8 @@ public final class AltsClientOptionsTest {
             .build();
 
     assertThat(options.getTargetName()).isEqualTo(targetName);
-    assertThat(options.getTargetServiceAccounts()).containsAllOf(serviceAccount1, serviceAccount2);
+    assertThat(options.getTargetServiceAccounts())
+        .containsAtLeast(serviceAccount1, serviceAccount2);
     assertThat(options.getRpcProtocolVersions()).isEqualTo(rpcVersions);
   }
 }