diff --git a/first-party-dependencies/pom.xml b/first-party-dependencies/pom.xml
index d29d5e2a..fdbf26fe 100644
--- a/first-party-dependencies/pom.xml
+++ b/first-party-dependencies/pom.xml
@@ -68,7 +68,7 @@
     <google.http-client.version>1.42.3</google.http-client.version>
     <google.oauth-client.version>1.34.1</google.oauth-client.version>
     <google.api-client.version>2.0.1</google.api-client.version>
-    <iam.version>1.6.20</iam.version>
+    <iam.version>1.6.21</iam.version>
   </properties>
 
   <dependencyManagement>