diff --git a/CHANGELOG.md b/CHANGELOG.md
index ba9141bc7..b4a87eeaa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,32 @@
 
 All notable changes to this project are documented in this file.
 
+## 0.27.0
+
+**Release date:** 2022-09-27
+
+This prerelease comes with strict validation rules for API fields which define a
+(time) duration. Effectively, this means values without a time unit (e.g. `ms`,
+`s`, `m`, `h`) will now be rejected by the API server. To stimulate sane
+configurations, the units `ns`, `us` and `µs` can no longer be configured, nor
+can `h` be set for fields defining a timeout value.
+
+In addition, the controller dependencies have been updated
+to Kubernetes controller-runtime v0.13.
+
+:warning: **Breaking changes:**
+- `Provider.spec.timeout` new validation pattern is `"^([0-9]+(\\.[0-9]+)?(ms|s|m))+$"`
+
+Improvements:
+* api: add custom validation for v1.Duration types
+  [#420](https://github.com/fluxcd/notification-controller/pull/420)
+* Update dependencies
+  [#423](https://github.com/fluxcd/notification-controller/pull/423)
+* Dockerfile: Build with Go 1.19
+  [#424](https://github.com/fluxcd/notification-controller/pull/424)
+* docs: Fix table with git commit status providers
+  [#421](https://github.com/fluxcd/notification-controller/pull/421)
+
 ## 0.26.0
 
 **Release date:** 2022-09-12
diff --git a/config/manager/kustomization.yaml b/config/manager/kustomization.yaml
index 22a6ba2c2..f0236bbd6 100644
--- a/config/manager/kustomization.yaml
+++ b/config/manager/kustomization.yaml
@@ -6,4 +6,4 @@ resources:
 images:
   - name: fluxcd/notification-controller
     newName: fluxcd/notification-controller
-    newTag: v0.26.0
+    newTag: v0.27.0
diff --git a/go.mod b/go.mod
index f4fc28190..4aed1e1fb 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/Azure/azure-amqp-common-go/v3 v3.2.3
 	github.com/Azure/azure-event-hubs-go/v3 v3.3.18
 	github.com/containrrr/shoutrrr v0.6.1
-	github.com/fluxcd/notification-controller/api v0.26.0
+	github.com/fluxcd/notification-controller/api v0.27.0
 	github.com/fluxcd/pkg/apis/meta v0.16.0
 	github.com/fluxcd/pkg/masktoken v0.2.0
 	github.com/fluxcd/pkg/runtime v0.19.0