diff --git a/CHANGELOG.md b/CHANGELOG.md
index 32a83a054a4d0..d099d61bfe64b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -86,6 +86,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Async blob read support for S3 plugin ([#9694](https://github.com/opensearch-project/OpenSearch/pull/9694))
 - [Telemetry-Otel] Added support for OtlpGrpcSpanExporter exporter ([#9666](https://github.com/opensearch-project/OpenSearch/pull/9666))
 - Async blob read support for encrypted containers ([#10131](https://github.com/opensearch-project/OpenSearch/pull/10131))
+-
 
 ### Dependencies
 - Bump `peter-evans/create-or-update-comment` from 2 to 3 ([#9575](https://github.com/opensearch-project/OpenSearch/pull/9575))
@@ -102,6 +103,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Bump `org.xerial.snappy:snappy-java` from 1.1.10.3 to 1.1.10.4 ([#10206](https://github.com/opensearch-project/OpenSearch/pull/10206))
 - Bump `com.google.api.grpc:proto-google-common-protos` from 2.10.0 to 2.25.0 ([#10208](https://github.com/opensearch-project/OpenSearch/pull/10208))
 - Bump `codecov/codecov-action` from 2 to 3 ([#10209](https://github.com/opensearch-project/OpenSearch/pull/10209))
+- Bump `org.bouncycastle:bcpkix-jdk15to18` from 1.75 to 1.76 ([10219](https://github.com/opensearch-project/OpenSearch/pull/10219))`
 
 ### Changed
 - Add instrumentation in rest and network layer. ([#9415](https://github.com/opensearch-project/OpenSearch/pull/9415))
diff --git a/buildSrc/version.properties b/buildSrc/version.properties
index 4a31582bb7546..71b3e267700b1 100644
--- a/buildSrc/version.properties
+++ b/buildSrc/version.properties
@@ -48,7 +48,7 @@ reactivestreams   = 1.0.4
 # when updating this version, you need to ensure compatibility with:
 #  - plugins/ingest-attachment (transitive dependency, check the upstream POM)
 #  - distribution/tools/plugin-cli
-bouncycastle=1.75
+bouncycastle=1.76
 # test dependencies
 randomizedrunner  = 2.7.1
 junit             = 4.13.2
diff --git a/plugins/identity-shiro/licenses/bcprov-jdk15to18-1.75.jar.sha1 b/plugins/identity-shiro/licenses/bcprov-jdk15to18-1.75.jar.sha1
deleted file mode 100644
index 9911bb75f9209..0000000000000
--- a/plugins/identity-shiro/licenses/bcprov-jdk15to18-1.75.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-df22e1b6a9f6b218913f5b68dd16641344397fe0
\ No newline at end of file
diff --git a/plugins/identity-shiro/licenses/bcprov-jdk15to18-1.76.jar.sha1 b/plugins/identity-shiro/licenses/bcprov-jdk15to18-1.76.jar.sha1
new file mode 100644
index 0000000000000..2e96c404bef98
--- /dev/null
+++ b/plugins/identity-shiro/licenses/bcprov-jdk15to18-1.76.jar.sha1
@@ -0,0 +1 @@
+0cb53f10290a634808555bc4b34328fdab1001f2
\ No newline at end of file
diff --git a/plugins/ingest-attachment/licenses/bcmail-jdk15to18-1.75.jar.sha1 b/plugins/ingest-attachment/licenses/bcmail-jdk15to18-1.75.jar.sha1
deleted file mode 100644
index e6840a9b02b38..0000000000000
--- a/plugins/ingest-attachment/licenses/bcmail-jdk15to18-1.75.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-b316bcd094e3917b1ece93a6edbab93f8315fb3b
\ No newline at end of file
diff --git a/plugins/ingest-attachment/licenses/bcmail-jdk15to18-1.76.jar.sha1 b/plugins/ingest-attachment/licenses/bcmail-jdk15to18-1.76.jar.sha1
new file mode 100644
index 0000000000000..46010d64015ad
--- /dev/null
+++ b/plugins/ingest-attachment/licenses/bcmail-jdk15to18-1.76.jar.sha1
@@ -0,0 +1 @@
+23d8bcad6b57912e4633ca9955926ffcdf3c5c71
\ No newline at end of file
diff --git a/plugins/ingest-attachment/licenses/bcpkix-jdk15to18-1.75.jar.sha1 b/plugins/ingest-attachment/licenses/bcpkix-jdk15to18-1.75.jar.sha1
deleted file mode 100644
index 9181b1c3ab1b6..0000000000000
--- a/plugins/ingest-attachment/licenses/bcpkix-jdk15to18-1.75.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-f16e5252ad7a46d5eaf255231b0a5da307599082
\ No newline at end of file
diff --git a/plugins/ingest-attachment/licenses/bcpkix-jdk15to18-1.76.jar.sha1 b/plugins/ingest-attachment/licenses/bcpkix-jdk15to18-1.76.jar.sha1
new file mode 100644
index 0000000000000..a843d972ac681
--- /dev/null
+++ b/plugins/ingest-attachment/licenses/bcpkix-jdk15to18-1.76.jar.sha1
@@ -0,0 +1 @@
+3ee440dfa1c557c1cc0c46b5dadf5ef3896ccebb
\ No newline at end of file
diff --git a/plugins/ingest-attachment/licenses/bcprov-jdk15to18-1.75.jar.sha1 b/plugins/ingest-attachment/licenses/bcprov-jdk15to18-1.75.jar.sha1
deleted file mode 100644
index 9911bb75f9209..0000000000000
--- a/plugins/ingest-attachment/licenses/bcprov-jdk15to18-1.75.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-df22e1b6a9f6b218913f5b68dd16641344397fe0
\ No newline at end of file
diff --git a/plugins/ingest-attachment/licenses/bcprov-jdk15to18-1.76.jar.sha1 b/plugins/ingest-attachment/licenses/bcprov-jdk15to18-1.76.jar.sha1
new file mode 100644
index 0000000000000..2e96c404bef98
--- /dev/null
+++ b/plugins/ingest-attachment/licenses/bcprov-jdk15to18-1.76.jar.sha1
@@ -0,0 +1 @@
+0cb53f10290a634808555bc4b34328fdab1001f2
\ No newline at end of file