diff --git a/build.gradle b/build.gradle
index f144e222455..47c3a57a577 100644
--- a/build.gradle
+++ b/build.gradle
@@ -239,7 +239,7 @@ dependencies {
     // this comes built-in when running on Google Dataproc, but the library
     // allows us to read from GCS also when testing locally (or on non-Dataproc clusters,
     // should we want to)
-    compile 'com.google.cloud.bigdataoss:gcs-connector:1.6.1-hadoop2'
+    compile 'com.google.cloud.bigdataoss:gcs-connector:1.6.3-hadoop2'
     compile 'org.apache.logging.log4j:log4j-api:2.3'
     compile 'org.apache.logging.log4j:log4j-core:2.3'
     compile 'org.apache.commons:commons-lang3:3.4'