diff --git a/pom.xml b/pom.xml
index 2f95d1e7f9..6be385f53a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -151,7 +151,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <github.global.server>github</github.global.server>
     <site.installationModule>google-cloud-core-parent</site.installationModule>
-    <gax.version>2.18.3</gax.version>
+    <gax.version>2.18.4</gax.version>
     <google.api-common.version>2.2.1</google.api-common.version>
     <google.common-protos.version>2.9.1</google.common-protos.version>
     <google.iam.version>1.5.0</google.iam.version>