diff --git a/README.md b/README.md
index a1b3bc2..06acdf2 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,9 @@
 # Go library for updating DS records with Punktum.dk's proprietary DS Update protocol
 
-[![Codecov](https://codecov.io/gh/arnested/dsupdate/branch/main/graph/badge.svg)](https://codecov.io/gh/arnested/dsupdate)
+> [!IMPORTANT]
+> Deprecated: Punktum.dk has closed the DS-update Service, see
+> <https://punktum.dk/artikler/breaking-changes>
+
 [![CLA assistant](https://cla-assistant.io/readme/badge/arnested/dsupdate)](https://cla-assistant.io/arnested/dsupdate)
 [![PkgGoDev](https://pkg.go.dev/badge/arnested.dk/go/dsupdate)](https://pkg.go.dev/arnested.dk/go/dsupdate)
 
diff --git a/README.md.template b/README.md.template
index aa140a9..a8c5628 100644
--- a/README.md.template
+++ b/README.md.template
@@ -1,6 +1,9 @@
 # Go library for updating DS records with Punktum.dk's proprietary DS Update protocol
 
-[![Codecov](https://codecov.io/gh/arnested/dsupdate/branch/main/graph/badge.svg)](https://codecov.io/gh/arnested/dsupdate)
+> [!IMPORTANT]
+> Deprecated: Punktum.dk has closed the DS-update Service, see
+> <https://punktum.dk/artikler/breaking-changes>
+
 [![CLA assistant](https://cla-assistant.io/readme/badge/arnested/dsupdate)](https://cla-assistant.io/arnested/dsupdate)
 [![PkgGoDev](https://pkg.go.dev/badge/arnested.dk/go/dsupdate)](https://pkg.go.dev/arnested.dk/go/dsupdate)
 
diff --git a/go.mod b/go.mod
index d6e53ac..07d042d 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,4 @@
+// Deprecated: Punktum.dk has closed the DS-update Service, see https://punktum.dk/artikler/breaking-changes
 module arnested.dk/go/dsupdate
 
 go 1.18