diff --git a/pkg/types/types.go b/pkg/types/types.go
deleted file mode 100644
index ee847f2..0000000
--- a/pkg/types/types.go
+++ /dev/null
@@ -1,7 +0,0 @@
-package types
-
-const (
-	DockerReferenceType     = "vnd.docker.reference.type"
-	DockerReferenceDigest   = "vnd.docker.reference.digest"
-	AttestationManifestType = "attestation-manifest"
-)