diff --git a/UPSTREAM_PROJECTS.yaml b/UPSTREAM_PROJECTS.yaml
index 8e8a03222c..dea2e47fb1 100644
--- a/UPSTREAM_PROJECTS.yaml
+++ b/UPSTREAM_PROJECTS.yaml
@@ -117,7 +117,7 @@ projects:
             go_version: "1.25"
       - name: notification-controller
         versions:
-          - tag: v1.8.2
+          - tag: v1.8.3
             go_version: "1.26"
       - name: source-controller
         versions:
diff --git a/projects/fluxcd/notification-controller/ATTRIBUTION.txt b/projects/fluxcd/notification-controller/ATTRIBUTION.txt
index 3d7f0e56a5..abd8421f50 100644
--- a/projects/fluxcd/notification-controller/ATTRIBUTION.txt
+++ b/projects/fluxcd/notification-controller/ATTRIBUTION.txt
@@ -38,10 +38,10 @@ https://github.com/docker/cli
 ** github.com/fluxcd/cli-utils/pkg; version v0.37.2-flux.1 --
 https://github.com/fluxcd/cli-utils
 
-** github.com/fluxcd/notification-controller; version v1.8.2 --
+** github.com/fluxcd/notification-controller; version v1.8.3 --
 https://github.com/fluxcd/notification-controller
 
-** github.com/fluxcd/notification-controller/api/v1; version v1.8.2 --
+** github.com/fluxcd/notification-controller/api/v1; version v1.8.3 --
 https://github.com/fluxcd/notification-controller/api
 
 ** github.com/fluxcd/pkg/apis/acl; version v0.9.0 --
diff --git a/projects/fluxcd/notification-controller/CHECKSUMS b/projects/fluxcd/notification-controller/CHECKSUMS
index 25bcde138b..e293bc9145 100644
--- a/projects/fluxcd/notification-controller/CHECKSUMS
+++ b/projects/fluxcd/notification-controller/CHECKSUMS
@@ -1,2 +1,2 @@
-2269f61e2ec58c292fa013537c0f98bbb920dbc14a2ed0afa54bb81e2d865f0d  _output/bin/notification-controller/linux-amd64/notification-controller
-1b015c7b3a2f19b5b8fe82c7b8249bbab6bfe95d88bdf25f013d6d74f34d201e  _output/bin/notification-controller/linux-arm64/notification-controller
+c3b0c7f02d59a8ba87dc5a3a10e7546f56e6d1e119bf9c69444b6b6ea0f4703d  _output/bin/notification-controller/linux-amd64/notification-controller
+6dbd93cd0e1650c3fc695c370fbb55d842a4c5bc8bcfc3b63a76c0a3734871b0  _output/bin/notification-controller/linux-arm64/notification-controller
diff --git a/projects/fluxcd/notification-controller/GIT_TAG b/projects/fluxcd/notification-controller/GIT_TAG
index 57f52717b0..1182b2ff77 100644
--- a/projects/fluxcd/notification-controller/GIT_TAG
+++ b/projects/fluxcd/notification-controller/GIT_TAG
@@ -1 +1 @@
-v1.8.2
+v1.8.3
diff --git a/projects/fluxcd/notification-controller/README.md b/projects/fluxcd/notification-controller/README.md
index b5dadd2d35..65d9fd09b8 100644
--- a/projects/fluxcd/notification-controller/README.md
+++ b/projects/fluxcd/notification-controller/README.md
@@ -1,5 +1,5 @@
 ## **Notification Controller**
-![Version](https://img.shields.io/badge/version-v1.8.2-blue)
+![Version](https://img.shields.io/badge/version-v1.8.3-blue)
 ![Build Status](https://codebuild.us-west-2.amazonaws.com/badges?uuid=eyJlbmNyeXB0ZWREYXRhIjoiVDhSNCt1djNtRytnWTgvQ01BMW13b2Y1YmZPakRrSGlRWitKZ0ZLZUdaS2xxclpLOFNidnBHNjBFWjRueHpOaGRrMzV5OUhLLzhRWHgyaC85R2tET2JZPSIsIml2UGFyYW1ldGVyU3BlYyI6IlZpNGwrazFrZndNMWE4cTciLCJtYXRlcmlhbFNldFNlcmlhbCI6MX0%3D&branch=main)
 
 The [notification-controller](https://github.com/fluxcd/notification-controller) is a Kubernetes operator specialized in handling inbound and outbound events. The controller exposes an HTTP endpoint for receiving events from other controllers. It can be configured with Kubernetes custom resources such as `Alert`, `Event`,`Provider` and `Receiver` to define how events are processed and where to dispatch them.
@@ -15,7 +15,7 @@ about changes necessary to eks-anywhere to support the new version and/or automa
 eks-anywhere version reach out to @jiayiwang7 or @danbudris
 1. Update the `GIT_TAG` file to have the new desired version based on the upstream release tags.
 1. Compare the old tag to the new, looking specifically for Makefile changes. 
-ex: [v1.2.2 compared to v1.8.2](https://github.com/fluxcd/notification-controller/compare/v1.2.2...v1.2.3). Check the `manager` target for
+ex: [v1.2.2 compared to v1.8.3](https://github.com/fluxcd/notification-controller/compare/v1.2.2...v1.2.3). Check the `manager` target for
 any build flag changes, tag changes, dependencies, etc.
 1. Verify the golang version has not changed. The version specified in `go.mod` seems to be kept up to date.  There is also
 a [dockerfile](https://github.com/fluxcd/notification-controller/blob/main/Dockerfile#L5) they use for building which has it defined.