diff --git a/CHANGELOG.md b/CHANGELOG.md
index 56ff3d11bde8c..e5475533e751d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Bump `ch.qos.logback:logback-core` from 1.5.16 to 1.5.17 ([#17609](https://github.com/opensearch-project/OpenSearch/pull/17609))
 - Bump `org.jruby.joni:joni` from 2.2.3 to 2.2.5 ([#17608](https://github.com/opensearch-project/OpenSearch/pull/17608))
 - Bump `dangoslen/dependabot-changelog-helper` from 3 to 4 ([#17498](https://github.com/opensearch-project/OpenSearch/pull/17498))
+- Bump `com.google.api:gax` from 2.35.0 to 2.63.1 ([#17465](https://github.com/opensearch-project/OpenSearch/pull/17465))
 
 ### Changed
 
diff --git a/plugins/repository-gcs/build.gradle b/plugins/repository-gcs/build.gradle
index 4e772118e18d5..515ad4c3bc0ed 100644
--- a/plugins/repository-gcs/build.gradle
+++ b/plugins/repository-gcs/build.gradle
@@ -49,7 +49,7 @@ opensearchplugin {
 
 dependencies {
   api 'com.google.api:api-common:2.46.1'
-  api 'com.google.api:gax:2.35.0'
+  api 'com.google.api:gax:2.63.1'
   api 'com.google.api:gax-httpjson:2.42.0'
 
   api 'com.google.apis:google-api-services-storage:v1-rev20230617-2.0.0'
@@ -202,9 +202,26 @@ thirdPartyAudit {
     'javax.jms.Message',
     'javax.servlet.ServletContextEvent',
     'javax.servlet.ServletContextListener',
-    // Bump for gax 2.42.0
-    'com.google.api.gax.rpc.EndpointContext',
-    'com.google.api.gax.rpc.RequestMutator'
+
+    // opentelemetry-api is an optional dependency of com.google.api:gax
+    'io.opentelemetry.api.OpenTelemetry',
+    'io.opentelemetry.api.common.Attributes',
+    'io.opentelemetry.api.common.AttributesBuilder',
+    'io.opentelemetry.api.metrics.DoubleHistogram',
+    'io.opentelemetry.api.metrics.DoubleHistogramBuilder',
+    'io.opentelemetry.api.metrics.LongCounter',
+    'io.opentelemetry.api.metrics.LongCounterBuilder',
+    'io.opentelemetry.api.metrics.Meter',
+    'io.opentelemetry.api.metrics.MeterBuilder',
+
+    // slf4j is an optional dependency of com.google.api:gax
+    'org.slf4j.ILoggerFactory',
+    'org.slf4j.Logger',
+    'org.slf4j.LoggerFactory',
+    'org.slf4j.MDC',
+    'org.slf4j.event.Level',
+    'org.slf4j.helpers.NOPLogger',
+    'org.slf4j.spi.LoggingEventBuilder'
   )
 }
 
diff --git a/plugins/repository-gcs/licenses/gax-2.35.0.jar.sha1 b/plugins/repository-gcs/licenses/gax-2.35.0.jar.sha1
deleted file mode 100644
index 778922c637dc1..0000000000000
--- a/plugins/repository-gcs/licenses/gax-2.35.0.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-98d52034cfa6d1b881e16f418894afcfacd89b7a
\ No newline at end of file
diff --git a/plugins/repository-gcs/licenses/gax-2.63.1.jar.sha1 b/plugins/repository-gcs/licenses/gax-2.63.1.jar.sha1
new file mode 100644
index 0000000000000..d438c0b04fcb9
--- /dev/null
+++ b/plugins/repository-gcs/licenses/gax-2.63.1.jar.sha1
@@ -0,0 +1 @@
+6c9a340608a63e24dc8acd8da84afd8ffecca4b7
\ No newline at end of file