diff --git a/docs/book/src/cronjob-tutorial/testdata/project/test/utils/utils.go b/docs/book/src/cronjob-tutorial/testdata/project/test/utils/utils.go
index 16a6383783a..3376be47159 100644
--- a/docs/book/src/cronjob-tutorial/testdata/project/test/utils/utils.go
+++ b/docs/book/src/cronjob-tutorial/testdata/project/test/utils/utils.go
@@ -32,7 +32,7 @@ const (
 	prometheusOperatorURL     = "https://github.com/prometheus-operator/prometheus-operator/" +
 		"releases/download/%s/bundle.yaml"
 
-	certmanagerVersion = "v1.14.4"
+	certmanagerVersion = "v1.16.0"
 	certmanagerURLTmpl = "https://github.com/jetstack/cert-manager/releases/download/%s/cert-manager.yaml"
 )
 
diff --git a/docs/book/src/getting-started/testdata/project/test/utils/utils.go b/docs/book/src/getting-started/testdata/project/test/utils/utils.go
index 16a6383783a..3376be47159 100644
--- a/docs/book/src/getting-started/testdata/project/test/utils/utils.go
+++ b/docs/book/src/getting-started/testdata/project/test/utils/utils.go
@@ -32,7 +32,7 @@ const (
 	prometheusOperatorURL     = "https://github.com/prometheus-operator/prometheus-operator/" +
 		"releases/download/%s/bundle.yaml"
 
-	certmanagerVersion = "v1.14.4"
+	certmanagerVersion = "v1.16.0"
 	certmanagerURLTmpl = "https://github.com/jetstack/cert-manager/releases/download/%s/cert-manager.yaml"
 )
 
diff --git a/docs/book/src/multiversion-tutorial/testdata/project/test/utils/utils.go b/docs/book/src/multiversion-tutorial/testdata/project/test/utils/utils.go
index 16a6383783a..3376be47159 100644
--- a/docs/book/src/multiversion-tutorial/testdata/project/test/utils/utils.go
+++ b/docs/book/src/multiversion-tutorial/testdata/project/test/utils/utils.go
@@ -32,7 +32,7 @@ const (
 	prometheusOperatorURL     = "https://github.com/prometheus-operator/prometheus-operator/" +
 		"releases/download/%s/bundle.yaml"
 
-	certmanagerVersion = "v1.14.4"
+	certmanagerVersion = "v1.16.0"
 	certmanagerURLTmpl = "https://github.com/jetstack/cert-manager/releases/download/%s/cert-manager.yaml"
 )
 
diff --git a/pkg/plugins/golang/v4/scaffolds/internal/templates/test/utils/utils.go b/pkg/plugins/golang/v4/scaffolds/internal/templates/test/utils/utils.go
index 6d3dec530d6..a50e36fed8f 100644
--- a/pkg/plugins/golang/v4/scaffolds/internal/templates/test/utils/utils.go
+++ b/pkg/plugins/golang/v4/scaffolds/internal/templates/test/utils/utils.go
@@ -57,7 +57,7 @@ const (
 	prometheusOperatorURL     = "https://github.com/prometheus-operator/prometheus-operator/" +
 		"releases/download/%s/bundle.yaml"
 
-	certmanagerVersion = "v1.14.4"
+	certmanagerVersion = "v1.16.0"
 	certmanagerURLTmpl = "https://github.com/jetstack/cert-manager/releases/download/%s/cert-manager.yaml"
 )
 
diff --git a/test/e2e/utils/test_context.go b/test/e2e/utils/test_context.go
index c726e21f826..c6a8e920278 100644
--- a/test/e2e/utils/test_context.go
+++ b/test/e2e/utils/test_context.go
@@ -31,7 +31,7 @@ import (
 )
 
 const (
-	certmanagerVersion        = "v1.14.4"
+	certmanagerVersion        = "v1.16.0"
 	certmanagerURLTmpl        = "https://github.com/cert-manager/cert-manager/releases/download/%s/cert-manager.yaml"
 	prometheusOperatorVersion = "0.51"
 	prometheusOperatorURL     = "https://raw.githubusercontent.com/prometheus-operator/" +
diff --git a/testdata/project-v4-multigroup/test/utils/utils.go b/testdata/project-v4-multigroup/test/utils/utils.go
index 16a6383783a..3376be47159 100644
--- a/testdata/project-v4-multigroup/test/utils/utils.go
+++ b/testdata/project-v4-multigroup/test/utils/utils.go
@@ -32,7 +32,7 @@ const (
 	prometheusOperatorURL     = "https://github.com/prometheus-operator/prometheus-operator/" +
 		"releases/download/%s/bundle.yaml"
 
-	certmanagerVersion = "v1.14.4"
+	certmanagerVersion = "v1.16.0"
 	certmanagerURLTmpl = "https://github.com/jetstack/cert-manager/releases/download/%s/cert-manager.yaml"
 )
 
diff --git a/testdata/project-v4-with-plugins/test/utils/utils.go b/testdata/project-v4-with-plugins/test/utils/utils.go
index 16a6383783a..3376be47159 100644
--- a/testdata/project-v4-with-plugins/test/utils/utils.go
+++ b/testdata/project-v4-with-plugins/test/utils/utils.go
@@ -32,7 +32,7 @@ const (
 	prometheusOperatorURL     = "https://github.com/prometheus-operator/prometheus-operator/" +
 		"releases/download/%s/bundle.yaml"
 
-	certmanagerVersion = "v1.14.4"
+	certmanagerVersion = "v1.16.0"
 	certmanagerURLTmpl = "https://github.com/jetstack/cert-manager/releases/download/%s/cert-manager.yaml"
 )
 
diff --git a/testdata/project-v4/test/utils/utils.go b/testdata/project-v4/test/utils/utils.go
index 16a6383783a..3376be47159 100644
--- a/testdata/project-v4/test/utils/utils.go
+++ b/testdata/project-v4/test/utils/utils.go
@@ -32,7 +32,7 @@ const (
 	prometheusOperatorURL     = "https://github.com/prometheus-operator/prometheus-operator/" +
 		"releases/download/%s/bundle.yaml"
 
-	certmanagerVersion = "v1.14.4"
+	certmanagerVersion = "v1.16.0"
 	certmanagerURLTmpl = "https://github.com/jetstack/cert-manager/releases/download/%s/cert-manager.yaml"
 )