diff --git a/first-party-dependencies/pom.xml b/first-party-dependencies/pom.xml
index 178ce936..01fd7d68 100644
--- a/first-party-dependencies/pom.xml
+++ b/first-party-dependencies/pom.xml
@@ -67,7 +67,7 @@
     <google.http-client.version>1.41.2</google.http-client.version>
     <google.oauth-client.version>1.33.1</google.oauth-client.version>
     <google.api-client.version>1.33.1</google.api-client.version>
-    <iam.version>1.2.1</iam.version>
+    <iam.version>1.2.6</iam.version>
   </properties>
 
   <dependencyManagement>