diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2111488813f..d4ca24f7c62 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,6 +1,6 @@
 {
   ".": "0.9.0",
-  "keptn-cert-manager": "1.2.0",
+  "keptn-cert-manager": "2.0.0",
   "runtimes/python-runtime": "1.0.1",
   "runtimes/deno-runtime": "1.0.2",
   "lifecycle-operator": "0.8.3",
diff --git a/keptn-cert-manager/CHANGELOG.md b/keptn-cert-manager/CHANGELOG.md
index 0940e75da7e..990a763b142 100644
--- a/keptn-cert-manager/CHANGELOG.md
+++ b/keptn-cert-manager/CHANGELOG.md
@@ -1,5 +1,25 @@
 # Changelog
 
+## [2.0.0](https://github.com/keptn/lifecycle-toolkit/compare/cert-manager-v1.2.0...cert-manager-v2.0.0) (2023-12-14)
+
+
+### ⚠ BREAKING CHANGES
+
+* rename KLT to Keptn ([#2554](https://github.com/keptn/lifecycle-toolkit/issues/2554))
+
+### Other
+
+* adapt helm charts to the new Keptn naming ([#2564](https://github.com/keptn/lifecycle-toolkit/issues/2564)) ([9ee4583](https://github.com/keptn/lifecycle-toolkit/commit/9ee45834bfa4dcedcbe99362d5d58b9febe3caae))
+* rename Keptn default namespace to 'keptn-system' ([#2565](https://github.com/keptn/lifecycle-toolkit/issues/2565)) ([aec1148](https://github.com/keptn/lifecycle-toolkit/commit/aec11489451ab1b0bcd69a6b90b0d45f69c5df7c))
+* rename KLT to Keptn ([#2554](https://github.com/keptn/lifecycle-toolkit/issues/2554)) ([15b0ac0](https://github.com/keptn/lifecycle-toolkit/commit/15b0ac0b36b8081b85b63f36e94b00065bcc8b22))
+
+
+### Dependency Updates
+
+* update dependency kubernetes-sigs/kustomize to v5.3.0 ([#2659](https://github.com/keptn/lifecycle-toolkit/issues/2659)) ([8877921](https://github.com/keptn/lifecycle-toolkit/commit/8877921b8be3052ce61a4f8decd96537c93df27a))
+* update module github.com/spf13/afero to v1.11.0 ([#2622](https://github.com/keptn/lifecycle-toolkit/issues/2622)) ([f4d705d](https://github.com/keptn/lifecycle-toolkit/commit/f4d705dbed6d5a602c5707cbe62024092384693e))
+* update module golang.org/x/net to v0.19.0 ([#2619](https://github.com/keptn/lifecycle-toolkit/issues/2619)) ([af2d0a5](https://github.com/keptn/lifecycle-toolkit/commit/af2d0a509b670792e06e2d05ab4be261d3bb54f4))
+
 ## [1.2.0](https://github.com/keptn/lifecycle-toolkit/compare/cert-manager-v1.1.0...cert-manager-v1.2.0) (2023-10-30)
 
 
diff --git a/keptn-cert-manager/Makefile b/keptn-cert-manager/Makefile
index 04a89310fdb..0406ea52832 100644
--- a/keptn-cert-manager/Makefile
+++ b/keptn-cert-manager/Makefile
@@ -6,7 +6,7 @@ RELEASE_REGISTRY?=ghcr.io/keptn
 RELEASE_TIME=$(shell date +%Y%m%d%s)
 BUILD_TIME=$(shell date -u "+%F_%T")
 RELEASE_VERSION?=$(RELEASE_TIME)-v0.24.3#$(shell git describe --tags --match "v*")
-TAG?="v1.2.0" # x-release-please-version
+TAG?="v2.0.0" # x-release-please-version
 RELEASE_IMAGE:=certificate-operator:$(TAG)
 CHART_APPVERSION?=""
 
diff --git a/keptn-cert-manager/chart/Chart.yaml b/keptn-cert-manager/chart/Chart.yaml
index 9d7b8dbbde9..dbb9eb27139 100644
--- a/keptn-cert-manager/chart/Chart.yaml
+++ b/keptn-cert-manager/chart/Chart.yaml
@@ -37,7 +37,7 @@ version: 0.2.0
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
 # It is recommended to use it with quotes.
-appVersion: "v1.2.0" # x-release-please-version
+appVersion: "v2.0.0" # x-release-please-version
 dependencies:
   - name: common
     repository: "https://charts.lifecycle.keptn.sh"
diff --git a/keptn-cert-manager/chart/values.yaml b/keptn-cert-manager/chart/values.yaml
index 1617d15278c..de2489ae85f 100644
--- a/keptn-cert-manager/chart/values.yaml
+++ b/keptn-cert-manager/chart/values.yaml
@@ -66,7 +66,7 @@ image:
 ## @param     image.repository specify repo for manager image
   repository: keptn/certificate-operator
 ## @param     image.tag select tag for manager container
-  tag: v1.2.0 # x-release-please-version
+  tag: v2.0.0 # x-release-please-version
 ## @param     imagePullPolicy select image pull policy for manager container
 imagePullPolicy: Always