diff --git a/renovate.json5 b/renovate.json5
index 1aaa515b..b5b8a32f 100644
--- a/renovate.json5
+++ b/renovate.json5
@@ -53,6 +53,7 @@
       ],
       matchStrings: [
         '//\\s*renovate:\\s*datasource=(?<datasource>[a-z-.]+?)\\s+depName=(?<depName>[^\\s]+?)(?:\\s+versioning=(?<versioning>[^\\s]+?))?\\s*\\n\\s*//\\s*Version:\\s*(?<currentValue>[^\\s]+?)\\s*\\n\\s*Image:\\s*"[^@]+@(?<currentDigest>sha256:[a-f0-9]+)"',
+        '//\\s*renovate:\\s*datasource=(?<datasource>[a-z-.]+?)\\s+depName=(?<depName>[^\\s]+?)(?:\\s+versioning=(?<versioning>[^\\s]+?))?\\s*\\n\\s*const\\s+\\w+\\s*=\\s*"(?<currentValue>[^"]+?)"',
       ],
     },
     {
diff --git a/test/e2e/internal/certmanager/certmanager.go b/test/e2e/internal/certmanager/certmanager.go
index 02d0466b..c00a5b80 100644
--- a/test/e2e/internal/certmanager/certmanager.go
+++ b/test/e2e/internal/certmanager/certmanager.go
@@ -55,9 +55,9 @@ func WithIgnoreExistingResources(ignore bool) InstallOption {
 	}
 }
 
-// TODO: renovate
-
 // DefaultVersion is the default version of cert-manager to install.
+//
+// renovate: datasource=github-releases depName=cert-manager/cert-manager
 const DefaultVersion = "v1.15.1"
 
 // Install installs cert-manager using kubectl.
diff --git a/test/e2e/internal/e2etestenv/main.go b/test/e2e/internal/e2etestenv/main.go
index 17b4ae0b..5400d364 100644
--- a/test/e2e/internal/e2etestenv/main.go
+++ b/test/e2e/internal/e2etestenv/main.go
@@ -97,9 +97,8 @@ func WithIgnoreExistingResources(ignore bool) SetupOption {
 }
 
 func defaultSetupOptions() SetupOptions {
-	// TODO: renovate
 	return SetupOptions{
-		CertManagerVersion: "v1.15.1",
+		CertManagerVersion: certmanager.DefaultVersion,
 	}
 }