diff --git a/first-party-dependencies/pom.xml b/first-party-dependencies/pom.xml
index 67da9e10..9baca66a 100644
--- a/first-party-dependencies/pom.xml
+++ b/first-party-dependencies/pom.xml
@@ -68,7 +68,7 @@
     <google.http-client.version>1.42.2</google.http-client.version>
     <google.oauth-client.version>1.34.1</google.oauth-client.version>
     <google.api-client.version>2.0.0</google.api-client.version>
-    <iam.version>1.6.3</iam.version>
+    <iam.version>1.6.4</iam.version>
   </properties>
 
   <dependencyManagement>