diff --git a/CHANGELOG.md b/CHANGELOG.md
index 19a9f4e1926dc..ed39b9d8cbc3c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -76,8 +76,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Bump `aws-actions/configure-aws-credentials` from 5 to 6 ([#20577](https://github.com/opensearch-project/OpenSearch/pull/20577))
 - Bump `netty` from 4.2.9.Final to 4.2.10.Final ([#20586](https://github.com/opensearch-project/OpenSearch/pull/20586))
 - Bump Apache Lucene from 10.3.2 to 10.4.0 ([#20735](https://github.com/opensearch-project/OpenSearch/pull/20735))
-- Bump `reactor-netty` from 1.3.2 to 1.3.3 ([#20589](https://github.com/opensearch-project/OpenSearch/pull/20589))
-- Bump `reactor` from 3.8.2 to 3.8.3 ([#20589](https://github.com/opensearch-project/OpenSearch/pull/20589))
+- Bump `reactor-netty` from 1.3.2 to 1.3.4 ([#20589](https://github.com/opensearch-project/OpenSearch/pull/20589), [#20834](https://github.com/opensearch-project/OpenSearch/pull/20834))
+- Bump `reactor` from 3.8.2 to 3.8.4 ([#20589](https://github.com/opensearch-project/OpenSearch/pull/20589), [#20834](https://github.com/opensearch-project/OpenSearch/pull/20834))
 - Bump `org.jruby.jcodings:jcodings` from 1.0.63 to 1.0.64 ([#20713](https://github.com/opensearch-project/OpenSearch/pull/20713))
 - Bump `org.jruby.joni:joni` from 2.2.3 to 2.2.7 ([#20714](https://github.com/opensearch-project/OpenSearch/pull/20714), [#20759](https://github.com/opensearch-project/OpenSearch/pull/20759))
 - Bump `tj-actions/changed-files` from 47.0.1 to 47.0.5 ([#20638](https://github.com/opensearch-project/OpenSearch/pull/20638), [#20716](https://github.com/opensearch-project/OpenSearch/pull/20716), [#20801](https://github.com/opensearch-project/OpenSearch/pull/20801))
diff --git a/client/rest/licenses/reactor-core-3.8.3.jar.sha1 b/client/rest/licenses/reactor-core-3.8.3.jar.sha1
deleted file mode 100644
index fe6c855db521b..0000000000000
--- a/client/rest/licenses/reactor-core-3.8.3.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-513c88a7befa2e87519ff1797a739ea2a06edd80
\ No newline at end of file
diff --git a/client/rest/licenses/reactor-core-3.8.4.jar.sha1 b/client/rest/licenses/reactor-core-3.8.4.jar.sha1
new file mode 100644
index 0000000000000..b3c8f3a55bf85
--- /dev/null
+++ b/client/rest/licenses/reactor-core-3.8.4.jar.sha1
@@ -0,0 +1 @@
+7cd47ac9899628366bc8c65bd91dcbcb4dcdef2a
\ No newline at end of file
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 64ca44a091790..ef6042d935725 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -42,8 +42,8 @@ joda              = "2.12.7"
 roaringbitmap     = "1.3.0"
 
 # project reactor
-reactor_netty     = "1.3.3"
-reactor           = "3.8.3"
+reactor_netty     = "1.3.4"
+reactor           = "3.8.4"
 
 # client dependencies
 httpclient5       = "5.6"
diff --git a/plugins/repository-azure/licenses/reactor-netty-core-1.3.3.jar.sha1 b/plugins/repository-azure/licenses/reactor-netty-core-1.3.3.jar.sha1
deleted file mode 100644
index f00966883a4cf..0000000000000
--- a/plugins/repository-azure/licenses/reactor-netty-core-1.3.3.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-6765f13295369dbcfa1326167b265031c4caa231
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/reactor-netty-core-1.3.4.jar.sha1 b/plugins/repository-azure/licenses/reactor-netty-core-1.3.4.jar.sha1
new file mode 100644
index 0000000000000..5445f6bec85da
--- /dev/null
+++ b/plugins/repository-azure/licenses/reactor-netty-core-1.3.4.jar.sha1
@@ -0,0 +1 @@
+6695d33dc22b8f7523aa6f952e78cdb62223916f
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/reactor-netty-http-1.3.3.jar.sha1 b/plugins/repository-azure/licenses/reactor-netty-http-1.3.3.jar.sha1
deleted file mode 100644
index fbfb90d798be8..0000000000000
--- a/plugins/repository-azure/licenses/reactor-netty-http-1.3.3.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-e3135c9951e07b1e39cf5ce58e60b8b610e9269f
\ No newline at end of file
diff --git a/plugins/repository-azure/licenses/reactor-netty-http-1.3.4.jar.sha1 b/plugins/repository-azure/licenses/reactor-netty-http-1.3.4.jar.sha1
new file mode 100644
index 0000000000000..ed019c963e204
--- /dev/null
+++ b/plugins/repository-azure/licenses/reactor-netty-http-1.3.4.jar.sha1
@@ -0,0 +1 @@
+fe1c378abcc815a2a6574047e1d949753124aeb1
\ No newline at end of file
diff --git a/plugins/transport-reactor-netty4/licenses/reactor-netty-core-1.3.3.jar.sha1 b/plugins/transport-reactor-netty4/licenses/reactor-netty-core-1.3.3.jar.sha1
deleted file mode 100644
index f00966883a4cf..0000000000000
--- a/plugins/transport-reactor-netty4/licenses/reactor-netty-core-1.3.3.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-6765f13295369dbcfa1326167b265031c4caa231
\ No newline at end of file
diff --git a/plugins/transport-reactor-netty4/licenses/reactor-netty-core-1.3.4.jar.sha1 b/plugins/transport-reactor-netty4/licenses/reactor-netty-core-1.3.4.jar.sha1
new file mode 100644
index 0000000000000..5445f6bec85da
--- /dev/null
+++ b/plugins/transport-reactor-netty4/licenses/reactor-netty-core-1.3.4.jar.sha1
@@ -0,0 +1 @@
+6695d33dc22b8f7523aa6f952e78cdb62223916f
\ No newline at end of file
diff --git a/plugins/transport-reactor-netty4/licenses/reactor-netty-http-1.3.3.jar.sha1 b/plugins/transport-reactor-netty4/licenses/reactor-netty-http-1.3.3.jar.sha1
deleted file mode 100644
index fbfb90d798be8..0000000000000
--- a/plugins/transport-reactor-netty4/licenses/reactor-netty-http-1.3.3.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-e3135c9951e07b1e39cf5ce58e60b8b610e9269f
\ No newline at end of file
diff --git a/plugins/transport-reactor-netty4/licenses/reactor-netty-http-1.3.4.jar.sha1 b/plugins/transport-reactor-netty4/licenses/reactor-netty-http-1.3.4.jar.sha1
new file mode 100644
index 0000000000000..ed019c963e204
--- /dev/null
+++ b/plugins/transport-reactor-netty4/licenses/reactor-netty-http-1.3.4.jar.sha1
@@ -0,0 +1 @@
+fe1c378abcc815a2a6574047e1d949753124aeb1
\ No newline at end of file
diff --git a/server/licenses/reactor-core-3.8.3.jar.sha1 b/server/licenses/reactor-core-3.8.3.jar.sha1
deleted file mode 100644
index fe6c855db521b..0000000000000
--- a/server/licenses/reactor-core-3.8.3.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-513c88a7befa2e87519ff1797a739ea2a06edd80
\ No newline at end of file
diff --git a/server/licenses/reactor-core-3.8.4.jar.sha1 b/server/licenses/reactor-core-3.8.4.jar.sha1
new file mode 100644
index 0000000000000..b3c8f3a55bf85
--- /dev/null
+++ b/server/licenses/reactor-core-3.8.4.jar.sha1
@@ -0,0 +1 @@
+7cd47ac9899628366bc8c65bd91dcbcb4dcdef2a
\ No newline at end of file