diff --git a/go.mod b/go.mod
index 16ffdd98..b8c9c8a5 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/syseleven/designate-certmanager-webhook
 go 1.17
 
 require (
-	github.com/cert-manager/cert-manager v1.8.0
+	github.com/cert-manager/cert-manager v1.8.1
 	github.com/gophercloud/gophercloud v0.14.0
 	github.com/kubernetes-incubator/external-dns v0.5.12
 	github.com/sirupsen/logrus v1.8.1
diff --git a/go.sum b/go.sum
index 1892a8df..75c25811 100644
--- a/go.sum
+++ b/go.sum
@@ -103,6 +103,8 @@ github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA
 github.com/census-instrumentation/opencensus-proto v0.3.0/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cert-manager/cert-manager v1.8.0 h1:A5FH4FUYGE/4lFYO6QzAWRxvSZfKlb9DZukv6lBPEiw=
 github.com/cert-manager/cert-manager v1.8.0/go.mod h1:95Ds29nFWH6YqEgLiQ9WTtsDnTcxrkUPRNfYaKVOzeM=
+github.com/cert-manager/cert-manager v1.8.1 h1:5TrIILSoT/aJ8dvcQrjlOAZRfkP7n5WbMr4g7FJs9Yw=
+github.com/cert-manager/cert-manager v1.8.1/go.mod h1:95Ds29nFWH6YqEgLiQ9WTtsDnTcxrkUPRNfYaKVOzeM=
 github.com/certifi/gocertifi v0.0.0-20191021191039-0944d244cd40/go.mod h1:sGbDF6GwGcLpkNXPUTkMRoywsNa/ol15pxFe6ERfguA=
 github.com/certifi/gocertifi v0.0.0-20200922220541-2c3bb06c6054/go.mod h1:sGbDF6GwGcLpkNXPUTkMRoywsNa/ol15pxFe6ERfguA=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=