diff --git a/go.mod b/go.mod
index 7a615061..605df6ef 100644
--- a/go.mod
+++ b/go.mod
@@ -7,7 +7,7 @@ toolchain go1.23.1
 require (
 	github.com/Masterminds/semver/v3 v3.2.1
 	github.com/alexandrevilain/controller-tools v0.3.0
-	github.com/cert-manager/cert-manager v1.15.0
+	github.com/cert-manager/cert-manager v1.15.3
 	github.com/elliotchance/orderedmap/v2 v2.4.0
 	github.com/go-logr/logr v1.4.2
 	github.com/gocql/gocql v1.7.0
diff --git a/go.sum b/go.sum
index c90a1fea..ec5d189a 100644
--- a/go.sum
+++ b/go.sum
@@ -36,8 +36,8 @@ github.com/cactus/go-statsd-client/v5 v5.1.0/go.mod h1:COEvJ1E+/E2L4q6QE5CkjWPi4
 github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
 github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
-github.com/cert-manager/cert-manager v1.15.0 h1:xVL8tzdQECMypoYQa9rv4DLjkn2pJXJLTqH4JUsxfko=
-github.com/cert-manager/cert-manager v1.15.0/go.mod h1:Vxq6yNKAbgQeMtzu5gqU8n0vXDiZcGTa5LDyCJRbmXE=
+github.com/cert-manager/cert-manager v1.15.3 h1:/u9T0griwd5MegPfWbB7v0KcVcT9OJrEvPNhc9tl7xQ=
+github.com/cert-manager/cert-manager v1.15.3/go.mod h1:stBge/DTvrhfQMB/93+Y62s+gQgZBsfL1o0C/4AL/mI=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=