diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index bd3706cc22f..39235df91f6 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,6 +1,6 @@
 {
   ".": "0.9.0",
-  "klt-cert-manager": "1.2.0",
+  "klt-cert-manager": "1.2.1",
   "runtimes/python-runtime": "1.0.1",
   "runtimes/deno-runtime": "1.0.2",
   "lifecycle-operator": "0.8.3",
diff --git a/klt-cert-manager/CHANGELOG.md b/klt-cert-manager/CHANGELOG.md
index 0940e75da7e..91fbe53ca0b 100644
--- a/klt-cert-manager/CHANGELOG.md
+++ b/klt-cert-manager/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## [1.2.1](https://github.com/keptn/lifecycle-toolkit/compare/cert-manager-v1.2.0...cert-manager-v1.2.1) (2023-11-06)
+
+
+### Bug Fixes
+
+* helm charts image registry, image pull policy and install action ([#2361](https://github.com/keptn/lifecycle-toolkit/issues/2361)) ([76ed884](https://github.com/keptn/lifecycle-toolkit/commit/76ed884498971c87c48cdab6fea822dfcf3e6e2f))
+
+
+### Other
+
+* **helm-chart:** generate umbrella chart lock ([#2391](https://github.com/keptn/lifecycle-toolkit/issues/2391)) ([55e12d4](https://github.com/keptn/lifecycle-toolkit/commit/55e12d4a6c3b5cd0fbb2cd6b8b8d29f2b7c8c500))
+* update cert-manager chart versions ([#2359](https://github.com/keptn/lifecycle-toolkit/issues/2359)) ([a9da96a](https://github.com/keptn/lifecycle-toolkit/commit/a9da96ad3cb62024fff9e408392018a75307d723))
+* update release please config to work with umbrella chart ([#2357](https://github.com/keptn/lifecycle-toolkit/issues/2357)) ([6ff3a5f](https://github.com/keptn/lifecycle-toolkit/commit/6ff3a5f64e394504fd5e7b67f0ac0a608428c1be))
+
 ## [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/klt-cert-manager/Makefile b/klt-cert-manager/Makefile
index 4e385639609..bc62d138146 100644
--- a/klt-cert-manager/Makefile
+++ b/klt-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?="v1.2.1" # x-release-please-version
 RELEASE_IMAGE:=certificate-operator:$(TAG)
 CHART_APPVERSION?=""
 
diff --git a/klt-cert-manager/chart/Chart.yaml b/klt-cert-manager/chart/Chart.yaml
index 9d7b8dbbde9..96a4db3c199 100644
--- a/klt-cert-manager/chart/Chart.yaml
+++ b/klt-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: "v1.2.1" # x-release-please-version
 dependencies:
   - name: common
     repository: "https://charts.lifecycle.keptn.sh"
diff --git a/klt-cert-manager/chart/values.yaml b/klt-cert-manager/chart/values.yaml
index 1617d15278c..f16a70b34e0 100644
--- a/klt-cert-manager/chart/values.yaml
+++ b/klt-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: v1.2.1 # x-release-please-version
 ## @param     imagePullPolicy select image pull policy for manager container
 imagePullPolicy: Always