diff --git a/go.mod b/go.mod
index a00879fb6..47d944734 100644
--- a/go.mod
+++ b/go.mod
@@ -6,7 +6,7 @@ toolchain go1.24.4
 
 require (
 	github.com/IBM-Cloud/bluemix-go v0.0.0-20250409011132-bdd4531aaa04
-	github.com/cert-manager/cert-manager v1.18.0
+	github.com/cert-manager/cert-manager v1.19.1
 	k8s.io/apiextensions-apiserver v0.33.1
 	k8s.io/client-go v0.33.1
 )