diff --git a/google-cloud-clients/google-cloud-contrib/google-cloud-nio/src/test/java/com/google/cloud/storage/contrib/nio/it/ITGcsNio.java b/google-cloud-clients/google-cloud-contrib/google-cloud-nio/src/test/java/com/google/cloud/storage/contrib/nio/it/ITGcsNio.java
index cd63e03706cb..a055bc137efa 100644
--- a/google-cloud-clients/google-cloud-contrib/google-cloud-nio/src/test/java/com/google/cloud/storage/contrib/nio/it/ITGcsNio.java
+++ b/google-cloud-clients/google-cloud-contrib/google-cloud-nio/src/test/java/com/google/cloud/storage/contrib/nio/it/ITGcsNio.java
@@ -35,6 +35,7 @@
 import org.junit.AfterClass;
 import org.junit.Assert;
 import org.junit.BeforeClass;
+import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
@@ -145,7 +146,7 @@ private static void fillRequesterPaysFile(Storage storage, String fname, int siz
   }
 
   // Start of tests related to the "requester pays" feature
-
+  @Ignore("blocked by #3448")
   @Test
   public void testFileExistsRequesterPaysNoUserProject() throws IOException {
     CloudStorageFileSystem testBucket = getRequesterPaysBucket(false, "");
diff --git a/google-cloud-clients/pom.xml b/google-cloud-clients/pom.xml
index ecdad53aa7d7..84852ef9d643 100644
--- a/google-cloud-clients/pom.xml
+++ b/google-cloud-clients/pom.xml
@@ -158,12 +158,12 @@
     <api-client.version>1.23.0</api-client.version>
     <gax.version>1.29.0</gax.version>
     <google.auth.version>0.9.1</google.auth.version>
-    <grpc.version>1.12.0</grpc.version>
+    <grpc.version>1.13.1</grpc.version>
     <nettyssl.version>2.0.7.Final</nettyssl.version>
     <guava.version>20.0</guava.version>
     <http-client.version>1.23.0</http-client.version>
     <protobuf.version>3.5.1</protobuf.version>
-    <opencensus.version>0.11.1</opencensus.version>
+    <opencensus.version>0.12.3</opencensus.version>
     <!-- test dependency versions -->
     <easymock.version>3.4</easymock.version>
     <objenesis.version>2.6</objenesis.version>